Euclid: Early Release Observations — A glance at free-floating new-born planets in the sigma Orionis cluster

Euclid: Early Release Observations — A glance at free-floating new-born planets in the sigma Orionis cluster
E. L. Mart’in (Instituto de Astrof’isica de Canarias, Calle V’ia L’actea s/n, 38204, San Crist’obal de La Laguna, Tenerife, Spain, Departamento de Astrof’isica, Universidad de La Laguna, 38206, La Laguna, Tenerife, Spain), M. {v{Z}}erjal (Instituto de Astrof’isica de Canarias, Calle V’ia L’actea s/n, 38204, San Crist’obal de La Laguna, Tenerife, Spain, Departamento de Astrof’isica, Universidad de La Laguna, 38206, La Laguna, Tenerife, Spain), H. Bouy (Laboratoire d’Astrophysique de Bordeaux, CNRS and Universit’e de Bordeaux, All’ee Geoffroy St. Hilaire, 33165 Pessac, France, Institut universitaire de France), D. Martin-Gonzalez (Departamento de F’isica Fundamental. Universidad de Salamanca. Plaza de la Merced s/n. 37008 Salamanca, Spain), S. Mu{v{n}}oz Torres (Instituto de Astrof’isica de Canarias, Calle V’ia L’actea s/n, 38204, San Crist’obal de La Laguna, Tenerife, Spain, Departamento de Astrof’isica, Universidad de La Laguna, 38206, La Laguna, Tenerife, Spain), D. Barrado (Centro de Astrobiolog’ia), J. Olivares (Departamento de Inteligencia Artificial, Universidad Nacional de Educaci’on a Distancia), A. P’erez-Garrido (Departamento F’isica Aplicada, Universidad Polit’ecnica de Cartagena, Campus Muralla del Mar, 30202 Cartagena, Murcia, Spain), P. Mas-Buitrago (Centro de Astrobiolog’ia), P. Cruz (Centro de Astrobiolog’ia), E. Solano (Centro de Astrobiolog’ia), M. R. Zapatero Osorio (Centro de Astrobiolog’ia), N. Lodieu (Instituto de Astrof’isica de Canarias, Calle V’ia L’actea s/n, 38204, San Crist’obal de La Laguna, Tenerife, Spain, Departamento de Astrof’isica, Universidad de La Laguna, 38206, La Laguna, Tenerife, Spain), V. J. S. B’ejar (Instituto de Astrof’isica de Canarias, Calle V’ia L’actea s/n, 38204, San Crist’obal de La Laguna, Tenerife, Spain, Departamento de Astrof’isica, Universidad de La Laguna, 38206, La Laguna, Tenerife, Spain), J. -Y. Zhang (Instituto de Astrof’isica de Canarias, Calle V’ia L’actea s/n, 38204, San Crist’obal de La Laguna, Tenerife, Spain, Departamento de Astrof’isica, Universidad de La Laguna, 38206, La Laguna, Tenerife, Spain), C. del Burgo (Instituto de Astrof’isica de Canarias, Calle V’ia L’actea s/n, 38204, San Crist’obal de La Laguna, Tenerife, Spain, Departamento de Astrof’isica, Universidad de La Laguna, 38206, La Laguna, Tenerife, Spain), N. Hu’elamo (Centro de Astrobiolog’ia), R. Laureijs (European Space Agency/ESTEC, Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands), A. Mora (Aurora Technology for European Space Agency), T. Saifollahi (Observatoire Astronomique de Strasbourg, Kapteyn Astronomical Institute, University of Groningen, PO Box 800, 9700 AV Groningen, The Netherlands), J. -C. Cuillandre (Universit’e Paris-Saclay, Universit’e Paris Cit’e, CEA, CNRS, AIM, 91191, Gif-sur-Yvette, France), M. Schirmer (Max-Planck-Institut f"ur Astronomie, K"onigstuhl 17, 69117 Heidelberg, Germany), R. Tata (Ohio University, Physics & Astronomy Department,1 Ohio University, Athens, OH 45701, USA), S. Points (NSF’s NOIR, Lab 950 N. Cherry Avenue, Tucson, Arizona 85719, USA), N. Phan-Bao (Department of Physics, International University, Ho Chi Minh City, Vietnam, Vietnam National University, Ho Chi Minh City, Vietnam), B. Goldman (International Space University, 1 rue Jean-Dominique Cassini, 67400 Illkirch-Graffenstaden, France, Observatoire Astronomique de Strasbourg), S. L. Casewell (School of Physics and Astronomy, University of Leicester, University Road, Leicester, LE1 7RH, UK), C. Reyl’e (Universit’e de Franche-Comt’e, Institut UTINAM, CNRS UMR6213, OSU THETA Franche-Comt’e-Bourgogne, Observatoire de Besanc{c}on, BP 1615, 25010 Besanc{c}on Cedex, France), R. L. Smart (INAF-Osservatorio Astrofisico di Torino, Via Osservatorio 20, 10025 Pino Torinese, School of Physics, Astronomy and Mathematics, University of Hertfordshire, College Lane, Hatfield AL10 9AB, UK), N. Aghanim (Universit’e Paris-Saclay, CNRS, Institut d’astrophysique spatiale, 91405, Orsay, France), B. Altieri (ESAC/ESA, Camino Bajo del Castillo, s/n., Urb. Villafranca del Castillo, 28692 Villanueva de la Ca~nada, Madrid, Spain), S. Andreon (INAF-Osservatorio Astronomico di Brera, Via Brera 28, 20122 Milano, Italy), N. Auricchio (INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129 Bologna, Italy), M. Baldi (Dipartimento di Fisica e Astronomia, Universit`a di Bologna, Via Gobetti 93/2, 40129 Bologna, Italy, INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129 Bologna, Italy, INFN-Sezione di Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy), A. Balestra (INAF-Osservatorio Astronomico di Padova, Via dell’Osservatorio 5, 35122 Padova, Italy), S. Bardelli (INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129 Bologna, Italy), A. Basset (Centre National d’Etudes Spatiales — Centre spatial de Toulouse, 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, France), R. Bender (Max Planck Institute for Extraterrestrial Physics, Giessenbachstr. 1, 85748 Garching, Germany, Universit"ats-Sternwarte M"unchen, Fakult"at f"ur Physik, Ludwig-Maximilians-Universit"at M"unchen, Scheinerstrasse 1, 81679 M"unchen, Germany), D. Bonino (INAF-Osservatorio Astrofisico di Torino, Via Osservatorio 20, 10025 Pino Torinese), E. Branchini (Dipartimento di Fisica, Universit`a di Genova, Via Dodecaneso 33, 16146, Genova, Italy, INFN-Sezione di Genova, Via Dodecaneso 33, 16146, Genova, Italy, INAF-Osservatorio Astronomico di Brera, Via Brera 28, 20122 Milano, Italy), M. Brescia (Department of Physics "E. Pancini", University Federico II, Via Cinthia 6, 80126, Napoli, Italy, INAF-Osservatorio Astronomico di Capodimonte, Via Moiariello 16, 80131 Napoli, Italy, INFN section of Naples, Via Cinthia 6, 80126, Napoli, Italy), J. Brinchmann (Instituto de Astrof’isica e Ci^encias do Espac{c}o, Universidade do Porto, CAUP, Rua das Estrelas, PT4150-762 Porto, Portugal), S. Camera (Dipartimento di Fisica, Universit`a degli Studi di Torino, Via P. Giuria 1, 10125 Torino, Italy, INFN-Sezione di Torino, Via P. Giuria 1, 10125 Torino, Italy, INAF-Osservatorio Astrofisico di Torino, Via Osservatorio 20, 10025 Pino Torinese), V. Capobianco (INAF-Osservatorio Astrofisico di Torino, Via Osservatorio 20, 10025 Pino Torinese), C. Carbone (INAF-IASF Milano, Via Alfonso Corti 12, 20133 Milano, Italy), J. Carretero (Centro de Investigaciones Energ’eticas, Medioambientales y Tecnol’ogicas, Port d’Informaci’o Cient’ifica, Campus UAB, C. Albareda s/n, 08193 Bellaterra), S. Casas (Institute for Theoretical Particle Physics and Cosmology), M. Castellano (INAF-Osservatorio Astronomico di Roma, Via Frascati 33, 00078 Monteporzio Catone, Italy), S. Cavuoti (INAF-Osservatorio Astronomico di Capodimonte, Via Moiariello 16, 80131 Napoli, Italy, INFN section of Naples, Via Cinthia 6, 80126, Napoli, Italy), A. Cimatti (Dipartimento di Fisica e Astronomia "Augusto Righi" – Alma Mater Studiorum Universit`a di Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy), G. Congedo (Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, UK), C. J. Conselice (Jodrell Bank Centre for Astrophysics, Department of Physics and Astronomy, University of Manchester, Oxford Road, Manchester M13 9PL, UK), L. Conversi (European Space Agency/ESRIN, Largo Galileo Galilei 1, 00044 Frascati, Roma, Italy, ESAC/ESA, Camino Bajo del Castillo, s/n., Urb. Villafranca del Castillo, 28692 Villanueva de la Ca~nada, Madrid, Spain), Y. Copin (Universit’e Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, UMR 5822, Villeurbanne, F-69100, France), L. Corcione (INAF-Osservatorio Astrofisico di Torino, Via Osservatorio 20, 10025 Pino Torinese), F. Courbin (Institute of Physics, Laboratory of Astrophysics, Ecole Polytechnique F’ed’erale de Lausanne), H. M. Courtois (UCB Lyon 1, CNRS/IN2P3, IUF, IP2I Lyon, 4 rue Enrico Fermi, 69622 Villeurbanne, France), M. Cropper (Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, Surrey RH5 6NT, UK), A. Da Silva (Departamento de F’isica, Faculdade de Ci^encias, Universidade de Lisboa, Edif’icio C8, Campo Grande, PT1749-016 Lisboa, Portugal, Instituto de Astrof’isica e Ci^encias do Espac{c}o, Faculdade de Ci^encias, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal), H. Degaudenzi (Department of Astronomy, University of Geneva, ch. d’Ecogia 16, 1290 Versoix, Switzerland), A. M. Di Giorgio (INAF-Istituto di Astrofisica e Planetologia Spaziali, via del Fosso del Cavaliere, 100, 00100 Roma, Italy), J. Dinis (Departamento de F’isica, Faculdade de Ci^encias, Universidade de Lisboa, Edif’icio C8, Campo Grande, PT1749-016 Lisboa, Portugal, Instituto de Astrof’isica e Ci^encias do Espac{c}o, Faculdade de Ci^encias, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal), F. Dubath (Department of Astronomy, University of Geneva, ch. d’Ecogia 16, 1290 Versoix, Switzerland), X. Dupac (ESAC/ESA, Camino Bajo del Castillo, s/n., Urb. Villafranca del Castillo, 28692 Villanueva de la Ca~nada, Madrid, Spain), S. Dusini (INFN-Padova, Via Marzolo 8, 35131 Padova, Italy), A. Ealet (Universit’e Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, UMR 5822, Villeurbanne, F-69100, France), M. Farina (INAF-Istituto di Astrofisica e Planetologia Spaziali, via del Fosso del Cavaliere, 100, 00100 Roma, Italy), S. Farrens (Universit’e Paris-Saclay, Universit’e Paris Cit’e, CEA, CNRS, AIM, 91191, Gif-sur-Yvette, France), S. Ferriol (Universit’e Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, UMR 5822, Villeurbanne, F-69100, France), P. Fosalba (Institut d’Estudis Espacials de Catalunya, Institut de Ciencies de l’Espai), M. Frailis (INAF-Osservatorio Astronomico di Trieste, Via G. B. Tiepolo 11, 34143 Trieste, Italy), E. Franceschi (INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129 Bologna, Italy), M. Fumana (INAF-IASF Milano, Via Alfonso Corti 12, 20133 Milano, Italy), S. Galeotta (INAF-Osservatorio Astronomico di Trieste, Via G. B. Tiepolo 11, 34143 Trieste, Italy), B. Garilli (INAF-IASF Milano, Via Alfonso Corti 12, 20133 Milano, Italy), W. Gillard (Aix-Marseille Universit’e, CNRS/IN2P3, CPPM, Marseille, France), B. Gillis (Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, UK), C. Giocoli (INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129 Bologna, Italy, Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, Via Irnerio 46, 40126 Bologna, Italy), P. G’omez-Alvarez (FRACTAL S.L.N.E., calle Tulip’an 2, Portal 13 1A, 28231, Las Rozas de Madrid, Spain, ESAC/ESA, Camino Bajo del Castillo, s/n., Urb. Villafranca del Castillo, 28692 Villanueva de la Ca~nada, Madrid, Spain), A. Grazian (INAF-Osservatorio Astronomico di Padova, Via dell’Osservatorio 5, 35122 Padova, Italy), F. Grupp (Max Planck Institute for Extraterrestrial Physics, Giessenbachstr. 1, 85748 Garching, Germany, Universit"ats-Sternwarte M"unchen, Fakult"at f"ur Physik, Ludwig-Maximilians-Universit"at M"unchen, Scheinerstrasse 1, 81679 M"unchen, Germany), L. Guzzo (Dipartimento di Fisica "Aldo Pontremoli", Universit`a degli Studi di Milano, Via Celoria 16, 20133 Milano, Italy, INAF-Osservatorio Astronomico di Brera, Via Brera 28, 20122 Milano, Italy), S. V. H. Haugan (Institute of Theoretical Astrophysics, University of Oslo, P.O. Box 1029 Blindern, 0315 Oslo, Norway), J. Hoar (ESAC/ESA, Camino Bajo del Castillo, s/n., Urb. Villafranca del Castillo, 28692 Villanueva de la Ca~nada, Madrid, Spain), H. Hoekstra (Leiden Observatory, Leiden University, Einsteinweg 55, 2333 CC Leiden, The Netherlands), W. Holmes (Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA, 91109, USA), I. Hook (Department of Physics, Lancaster University, Lancaster, LA1 4YB, UK), F. Hormuth (Felix Hormuth Engineering, Goethestr. 17, 69181 Leimen, Germany), A. Hornstrup (Technical University of Denmark, Elektrovej 327, 2800 Kgs. Lyngby, Denmark, Cosmic Dawn Center), D. Hu (Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, Surrey RH5 6NT, UK), P. Hudelot (Institut d’Astrophysique de Paris, UMR 7095, CNRS, and Sorbonne Universit’e, 98 bis boulevard Arago, 75014 Paris, France), K. Jahnke (Max-Planck-Institut f"ur Astronomie, K"onigstuhl 17, 69117 Heidelberg, Germany), M. Jhabvala (NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA), E. Keih"anen (Department of Physics and Helsinki Institute of Physics, Gustaf H"allstr"omin katu 2, 00014 University of Helsinki, Finland), S. Kermiche (Aix-Marseille Universit’e, CNRS/IN2P3, CPPM, Marseille, France), A. Kiessling (Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA, 91109, USA), M. Kilbinger (Universit’e Paris-Saclay, Universit’e Paris Cit’e, CEA, CNRS, AIM, 91191, Gif-sur-Yvette, France), T. Kitching (Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, Surrey RH5 6NT, UK), R. Kohley (ESAC/ESA, Camino Bajo del Castillo, s/n., Urb. Villafranca del Castillo, 28692 Villanueva de la Ca~nada, Madrid, Spain), B. Kubik (Universit’e Claude Bernard Lyon 1, CNRS/IN2P3, IP2I Lyon, UMR 5822, Villeurbanne, F-69100, France), M. K"ummel (Universit"ats-Sternwarte M"unchen, Fakult"at f"ur Physik, Ludwig-Maximilians-Universit"at M"unchen, Scheinerstrasse 1, 81679 M"unchen, Germany), M. Kunz (Universit’e de Gen`eve, D’epartement de Physique Th’eorique and Centre for Astroparticle Physics, 24 quai Ernest-Ansermet, CH-1211 Gen`eve 4, Switzerland), H. Kurki-Suonio (Department of Physics, P.O. Box 64, 00014 University of Helsinki, Finland, Helsinki Institute of Physics, Gustaf H"allstr"omin katu 2, University of Helsinki, Helsinki, Finland), D. Le Mignant (Aix-Marseille Universit’e, CNRS, CNES, LAM, Marseille, France), S. Ligori (INAF-Osservatorio Astrofisico di Torino, Via Osservatorio 20, 10025 Pino Torinese), P. B. Lilje (Institute of Theoretical Astrophysics, University of Oslo, P.O. Box 1029 Blindern, 0315 Oslo, Norway), V. Lindholm (Department of Physics, P.O. Box 64, 00014 University of Helsinki, Finland, Helsinki Institute of Physics, Gustaf H"allstr"omin katu 2, University of Helsinki, Helsinki, Finland), I. Lloro (NOVA optical infrared instrumentation group at ASTRON, Oude Hoogeveensedijk 4, 7991PD, Dwingeloo, The Netherlands), D. Maino (Dipartimento di Fisica "Aldo Pontremoli", Universit`a degli Studi di Milano, Via Celoria 16, 20133 Milano, Italy, INAF-IASF Milano, Via Alfonso Corti 12, 20133 Milano, Italy, INFN-Sezione di Milano, Via Celoria 16, 20133 Milano, Italy), E. Maiorano (INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129 Bologna, Italy), O. Mansutti (INAF-Osservatorio Astronomico di Trieste, Via G. B. Tiepolo 11, 34143 Trieste, Italy), O. Marggraf (Universit"at Bonn, Argelander-Institut f"ur Astronomie, Auf dem H"ugel 71, 53121 Bonn, Germany), N. Martinet (Aix-Marseille Universit’e, CNRS, CNES, LAM, Marseille, France), F. Marulli (Dipartimento di Fisica e Astronomia "Augusto Righi" – Alma Mater Studiorum Universit`a di Bologna, via Piero Gobetti 93/2, 40129 Bologna, Italy, INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129 Bologna, Italy, INFN-Sezione di Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy), R. Massey (Department of Physics, Centre for Extragalactic Astronomy, Durham University, South Road, DH1 3LE, UK), E. Medinaceli (INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129 Bologna, Italy), S. Mei (Universit’e Paris Cit’e, CNRS, Astroparticule et Cosmologie, 75013 Paris, France), M. Melchior (University of Applied Sciences and Arts of Northwestern Switzerland, School of Engineering, 5210 Windisch, Switzerland), Y. Mellier (Institut d’Astrophysique de Paris, 98bis Boulevard Arago, 75014, Paris, France, Institut d’Astrophysique de Paris, UMR 7095, CNRS, and Sorbonne Universit’e, 98 bis boulevard Arago, 75014 Paris, France), M. Meneghetti (INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129 Bologna, Italy, INFN-Sezione di Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy), G. Meylan (Institute of Physics, Laboratory of Astrophysics, Ecole Polytechnique F’ed’erale de Lausanne), J. J. Mohr (Universit"ats-Sternwarte M"unchen, Fakult"at f"ur Physik, Ludwig-Maximilians-Universit"at M"unchen, Scheinerstrasse 1, 81679 M"unchen, Germany, Max Planck Institute for Extraterrestrial Physics, Giessenbachstr. 1, 85748 Garching, Germany), M. Moresco (Dipartimento di Fisica e Astronomia "Augusto Righi" – Alma Mater Studiorum Universit`a di Bologna, via Piero Gobetti 93/2, 40129 Bologna, Italy, INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129 Bologna, Italy), L. Moscardini (Dipartimento di Fisica e Astronomia "Augusto Righi" – Alma Mater Studiorum Universit`a di Bologna, via Piero Gobetti 93/2, 40129 Bologna, Italy, INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129 Bologna, Italy, INFN-Sezione di Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy), S. -M. Niemi (European Space Agency/ESTEC, Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands), C. Padilla (Institut de F’isica d’Altes Energies), S. Paltani (Department of Astronomy, University of Geneva, ch. d’Ecogia 16, 1290 Versoix, Switzerland), F. Pasian (INAF-Osservatorio Astronomico di Trieste, Via G. B. Tiepolo 11, 34143 Trieste, Italy), K. Pedersen (Department of Physics and Astronomy, University of Aarhus, Ny Munkegade 120, DK-8000 Aarhus C, Denmark), W. J. Percival (Waterloo Centre for Astrophysics, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada, Department of Physics and Astronomy, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada, Perimeter Institute for Theoretical Physics, Waterloo, Ontario N2L 2Y5, Canada), V. Pettorino (European Space Agency/ESTEC, Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands), S. Pires (Universit’e Paris-Saclay, Universit’e Paris Cit’e, CEA, CNRS, AIM, 91191, Gif-sur-Yvette, France), G. Polenta (Space Science Data Center, Italian Space Agency, via del Politecnico snc, 00133 Roma, Italy), M. Poncet (Centre National d’Etudes Spatiales — Centre spatial de Toulouse, 18 avenue Edouard Belin, 31401 Toulouse Cedex 9, France), L. A. Popa (Institute of Space Science, Str. Atomistilor, nr. 409 Mu{a}gurele, Ilfov, 077125, Romania), L. Pozzetti (INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129 Bologna, Italy), G. D. Racca (European Space Agency/ESTEC, Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands), F. Raison (Max Planck Institute for Extraterrestrial Physics, Giessenbachstr. 1, 85748 Garching, Germany), R. Rebolo (Instituto de Astrof’isica de Canarias, Calle V’ia L’actea s/n, 38204, San Crist’obal de La Laguna, Tenerife, Spain, Departamento de Astrof’isica, Universidad de La Laguna, 38206, La Laguna, Tenerife, Spain), A. Renzi (Dipartimento di Fisica e Astronomia "G. Galilei", Universit`a di Padova, Via Marzolo 8, 35131 Padova, Italy, INFN-Padova, Via Marzolo 8, 35131 Padova, Italy), J. Rhodes (Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA, 91109, USA), G. Riccio (INAF-Osservatorio Astronomico di Capodimonte, Via Moiariello 16, 80131 Napoli, Italy), Hans-Walter Rix (Max-Planck-Institut f"ur Astronomie, K"onigstuhl 17, 69117 Heidelberg, Germany), E. Romelli (INAF-Osservatorio Astronomico di Trieste, Via G. B. Tiepolo 11, 34143 Trieste, Italy), M. Roncarelli (INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129 Bologna, Italy), E. Rossetti (Dipartimento di Fisica e Astronomia, Universit`a di Bologna, Via Gobetti 93/2, 40129 Bologna, Italy), R. Saglia (Universit"ats-Sternwarte M"unchen, Fakult"at f"ur Physik, Ludwig-Maximilians-Universit"at M"unchen, Scheinerstrasse 1, 81679 M"unchen, Germany, Max Planck Institute for Extraterrestrial Physics, Giessenbachstr. 1, 85748 Garching, Germany), D. Sapone (Departamento de F’isica, FCFM, Universidad de Chile, Blanco Encalada 2008, Santiago, Chile), B. Sartoris (Universit"ats-Sternwarte M"unchen, Fakult"at f"ur Physik, Ludwig-Maximilians-Universit"at M"unchen, Scheinerstrasse 1, 81679 M"unchen, Germany, INAF-Osservatorio Astronomico di Trieste, Via G. B. Tiepolo 11, 34143 Trieste, Italy), M. Sauvage (Universit’e Paris-Saclay, Universit’e Paris Cit’e, CEA, CNRS, AIM, 91191, Gif-sur-Yvette, France), R. Scaramella (INAF-Osservatorio Astronomico di Roma, Via Frascati 33, 00078 Monteporzio Catone, Italy, INFN-Sezione di Roma, Piazzale Aldo Moro, 2 – c/o Dipartimento di Fisica, Edificio G. Marconi, 00185 Roma, Italy), P. Schneider (Universit"at Bonn, Argelander-Institut f"ur Astronomie, Auf dem H"ugel 71, 53121 Bonn, Germany), A. Secroun (Aix-Marseille Universit’e, CNRS/IN2P3, CPPM, Marseille, France), G. Seidel (Max-Planck-Institut f"ur Astronomie, K"onigstuhl 17, 69117 Heidelberg, Germany), M. Seiffert (Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA, 91109, USA), S. Serrano (Institut d’Estudis Espacials de Catalunya, Satlantis, University Science Park, Sede Bld 48940, Leioa-Bilbao, Spain, Institute of Space Sciences), C. Sirignano (Dipartimento di Fisica e Astronomia "G. Galilei", Universit`a di Padova, Via Marzolo 8, 35131 Padova, Italy, INFN-Padova, Via Marzolo 8, 35131 Padova, Italy), G. Sirri (INFN-Sezione di Bologna, Viale Berti Pichat 6/2, 40127 Bologna, Italy), L. Stanco (INFN-Padova, Via Marzolo 8, 35131 Padova, Italy), P. Tallada-Cresp’i (Centro de Investigaciones Energ’eticas, Medioambientales y Tecnol’ogicas, Port d’Informaci’o Cient’ifica, Campus UAB, C. Albareda s/n, 08193 Bellaterra), A. N. Taylor (Institute for Astronomy, University of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh EH9 3HJ, UK), H. I. Teplitz (Infrared Processing and Analysis Center, California Institute of Technology, Pasadena, CA 91125, USA), I. Tereno (Departamento de F’isica, Faculdade de Ci^encias, Universidade de Lisboa, Edif’icio C8, Campo Grande, PT1749-016 Lisboa, Portugal, Instituto de Astrof’isica e Ci^encias do Espac{c}o, Faculdade de Ci^encias, Universidade de Lisboa, Tapada da Ajuda, 1349-018 Lisboa, Portugal), R. Toledo-Moreo (Universidad Polit’ecnica de Cartagena, Departamento de Electr’onica y Tecnolog’ia de Computadoras, Plaza del Hospital 1, 30202 Cartagena, Spain), A. Tsyganov (Centre for Information Technology, University of Groningen, P.O. Box 11044, 9700 CA Groningen, The Netherlands), I. Tutusaus (Institut de Recherche en Astrophysique et Plan’etologie), L. Valenziano (INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129 Bologna, Italy, INFN-Bologna, Via Irnerio 46, 40126 Bologna, Italy), T. Vassallo (Universit"ats-Sternwarte M"unchen, Fakult"at f"ur Physik, Ludwig-Maximilians-Universit"at M"unchen, Scheinerstrasse 1, 81679 M"unchen, Germany, INAF-Osservatorio Astronomico di Trieste, Via G. B. Tiepolo 11, 34143 Trieste, Italy), G. Verdoes Kleijn (Kapteyn Astronomical Institute, University of Groningen, PO Box 800, 9700 AV Groningen, The Netherlands), Y. Wang (Infrared Processing and Analysis Center, California Institute of Technology, Pasadena, CA 91125, USA), J. Weller (Universit"ats-Sternwarte M"unchen, Fakult"at f"ur Physik, Ludwig-Maximilians-Universit"at M"unchen, Scheinerstrasse 1, 81679 M"unchen, Germany, Max Planck Institute for Extraterrestrial Physics, Giessenbachstr. 1, 85748 Garching, Germany), O. R. Williams (Centre for Information Technology, University of Groningen, P.O. Box 11044, 9700 CA Groningen, The Netherlands), E. Zucca (INAF-Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129 Bologna, Italy), C. Baccigalupi (IFPU, Institute for Fundamental Physics of the Universe, via Beirut 2, 34151 Trieste, Italy, INAF-Osservatorio Astronomico di Trieste, Via G. B. Tiepolo 11, 34143 Trieste, Italy, INFN, Sezione di Trieste, Via Valerio 2, 34127 Trieste TS, Italy, SISSA, International School for Advanced Studies, Via Bonomea 265, 34136 Trieste TS, Italy), G. Willis (Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, Surrey RH5 6NT, UK), P. Simon (Universit"at Bonn, Argelander-Institut f"ur Astronomie, Auf dem H"ugel 71, 53121 Bonn, Germany), J. Mart’in-Fleitas (Aurora Technology for European Space Agency), D. Scott (Department of Physics and Astronomy, University of British Columbia, Vancouver, BC V6T 1Z1, Canada)
arXiv:2405.13497v1 Announce Type: new
Abstract: We provide an early assessment of the imaging capabilities of the Euclid space mission to probe deeply into nearby star-forming regions and associated very young open clusters, and in particular to check to what extent it can shed light on the new-born free-floating planet population. This paper focuses on a low-reddening region observed in just one Euclid pointing where the dust and gas has been cleared out by the hot sigma Orionis star. One late-M and six known spectroscopically confirmed L-type substellar members in the sigma Orionis cluster are used as benchmarks to provide a high-purity procedure to select new candidate members with Euclid. The exquisite angular resolution and depth delivered by the Euclid instruments allow us to focus on bona-fide point sources. A cleaned sample of sigma Orionis cluster substellar members has been produced and the initial mass function (IMF) has been estimated by combining Euclid and Gaia data. Our sigma Orionis substellar IMF is consistent with a power-law distribution with no significant steepening at the planetary-mass end. No evidence of a low-mass cutoff is found down to about 4 Jupiter masses at the young age (3 Myr) of the sigma Orionis open cluster.arXiv:2405.13497v1 Announce Type: new
Abstract: We provide an early assessment of the imaging capabilities of the Euclid space mission to probe deeply into nearby star-forming regions and associated very young open clusters, and in particular to check to what extent it can shed light on the new-born free-floating planet population. This paper focuses on a low-reddening region observed in just one Euclid pointing where the dust and gas has been cleared out by the hot sigma Orionis star. One late-M and six known spectroscopically confirmed L-type substellar members in the sigma Orionis cluster are used as benchmarks to provide a high-purity procedure to select new candidate members with Euclid. The exquisite angular resolution and depth delivered by the Euclid instruments allow us to focus on bona-fide point sources. A cleaned sample of sigma Orionis cluster substellar members has been produced and the initial mass function (IMF) has been estimated by combining Euclid and Gaia data. Our sigma Orionis substellar IMF is consistent with a power-law distribution with no significant steepening at the planetary-mass end. No evidence of a low-mass cutoff is found down to about 4 Jupiter masses at the young age (3 Myr) of the sigma Orionis open cluster.