Cosmology-independent estimate of the fraction of baryon mass in the IGM from fast radio burst observations. (arXiv:1904.08927v1 [astro-ph.CO])

Cosmology-independent estimate of the fraction of baryon mass in the IGM from fast radio burst observations. (arXiv:1904.08927v1 [astro-ph.CO]) <a href="http://arxiv.org/find/astro-ph/1/au:+Li_Z/0/1/0/all/0/1">Zhengxiang Li</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gao_H/0/1/0/all/0/1">He Gao</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wei_J/0/1/0/all/0/1">Jun-Jie Wei</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Yang_Y/0/1/0/all/0/1">Yuan-Pei Yang</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Zhang_B/0/1/0/all/0/1">Bing Zhang</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Zhu_Z/0/1/0/all/0/1">Zong-Hong Zhu</a> The excessive dispersion measure (DM) of fast radio bursts (FRBs) has been proposed to be a powerful tool to […]

The MASSIVE Survey XIII — Spatially Resolved Stellar Kinematics in the Central 1 kpc of 20 Massive Elliptical Galaxies with the GMOS-North Integral-Field Spectrograph. (arXiv:1904.08929v1 [astro-ph.GA])

The MASSIVE Survey XIII — Spatially Resolved Stellar Kinematics in the Central 1 kpc of 20 Massive Elliptical Galaxies with the GMOS-North Integral-Field Spectrograph. (arXiv:1904.08929v1 [astro-ph.GA]) <a href="http://arxiv.org/find/astro-ph/1/au:+Ene_I/0/1/0/all/0/1">Irina Ene</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ma_C/0/1/0/all/0/1">Chung-Pei Ma</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+McConnell_N/0/1/0/all/0/1">Nicholas J. McConnell</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Walsh_J/0/1/0/all/0/1">Jonelle L. Walsh</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kempski_P/0/1/0/all/0/1">Philipp Kempski</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Greene_J/0/1/0/all/0/1">Jenny E. Greene</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Thomas_J/0/1/0/all/0/1">Jens Thomas</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Blakeslee_J/0/1/0/all/0/1">John P. Blakeslee</a> We […]

Shaping Asteroids with Genetic Evolution (SAGE). (arXiv:1904.08940v1 [astro-ph.EP])

Shaping Asteroids with Genetic Evolution (SAGE). (arXiv:1904.08940v1 [astro-ph.EP]) <a href="http://arxiv.org/find/astro-ph/1/au:+Bartczak_P/0/1/0/all/0/1">P. Bartczak</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dudzinski_G/0/1/0/all/0/1">G. Dudzi&#x144;ski</a> In this work we present SAGE (Shaping Asteroid models using Genetic Evolution) asteroid modelling algorithm based solely on photometric lightcurve data. It produces non-convex shapes, rotation axes orientati and rotational periods of asteroids. The main concept behind a genetic evolution algorithm […]

The Supersonic Project: Shining Light on SIGOs – a New Formation Channel for Globular Clusters. (arXiv:1904.08941v1 [astro-ph.GA])

The Supersonic Project: Shining Light on SIGOs – a New Formation Channel for Globular Clusters. (arXiv:1904.08941v1 [astro-ph.GA]) <a href="http://arxiv.org/find/astro-ph/1/au:+Chiou_Y/0/1/0/all/0/1">Yeou S. Chiou</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Naoz_S/0/1/0/all/0/1">Smadar Naoz</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Burkhart_B/0/1/0/all/0/1">Blakesley Burkhart</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Marinacci_F/0/1/0/all/0/1">Federico Marinacci</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Vogelsberger_M/0/1/0/all/0/1">Mark Vogelsberger</a> Supersonically induced gas objects (SIGOs) with little to no dark matter component are predicted to exist in patches of the Universe with […]

Anatomy of a Cooling Flow: The Feedback Response to Pure Cooling in the Core of the Phoenix Cluster. (arXiv:1904.08942v1 [astro-ph.GA])

Anatomy of a Cooling Flow: The Feedback Response to Pure Cooling in the Core of the Phoenix Cluster. (arXiv:1904.08942v1 [astro-ph.GA]) <a href="http://arxiv.org/find/astro-ph/1/au:+McDonald_M/0/1/0/all/0/1">M. McDonald</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+McNamara_B/0/1/0/all/0/1">B. R. McNamara</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Voit_G/0/1/0/all/0/1">G. M. Voit</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bayliss_M/0/1/0/all/0/1">M. Bayliss</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Benson_B/0/1/0/all/0/1">B. A. Benson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Brodwin_M/0/1/0/all/0/1">M. Brodwin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Canning_R/0/1/0/all/0/1">R. E. A. Canning</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Florian_M/0/1/0/all/0/1">M. K. Florian</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Garmire_G/0/1/0/all/0/1">G. P. Garmire</a>, <a […]

Radio spectra and sizes of ALMA-identified submillimetre galaxies: evidence of age-related spectral curvature and cosmic ray diffusion?. (arXiv:1904.08944v1 [astro-ph.GA])

Radio spectra and sizes of ALMA-identified submillimetre galaxies: evidence of age-related spectral curvature and cosmic ray diffusion?. (arXiv:1904.08944v1 [astro-ph.GA]) <a href="http://arxiv.org/find/astro-ph/1/au:+Thomson_A/0/1/0/all/0/1">A.P. Thomson</a> (JBCA &amp; Durham), <a href="http://arxiv.org/find/astro-ph/1/au:+Smail_I/0/1/0/all/0/1">Ian Smail</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Swinbank_A/0/1/0/all/0/1">A.M. Swinbank</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Simpson_J/0/1/0/all/0/1">J.M. Simpson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Arumugam_V/0/1/0/all/0/1">V. Arumugam</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Stach_S/0/1/0/all/0/1">S. Stach</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Murphy_E/0/1/0/all/0/1">E.J. Murphy</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rujopakarn_W/0/1/0/all/0/1">W. Rujopakarn</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Almaini_O/0/1/0/all/0/1">O. Almaini</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+An_F/0/1/0/all/0/1">F. An</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Blain_A/0/1/0/all/0/1">A.W. Blain</a>, […]

X-Ray Spectral Model from Clumpy Torus and Its Application to Circinus Galaxy. (arXiv:1904.08945v1 [astro-ph.HE])

X-Ray Spectral Model from Clumpy Torus and Its Application to Circinus Galaxy. (arXiv:1904.08945v1 [astro-ph.HE]) <a href="http://arxiv.org/find/astro-ph/1/au:+Tanimoto_A/0/1/0/all/0/1">Atsushi Tanimoto</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ueda_Y/0/1/0/all/0/1">Yoshihiro Ueda</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Odaka_H/0/1/0/all/0/1">Hirokazu Odaka</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kawaguchi_T/0/1/0/all/0/1">Toshihiro Kawaguchi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Fukazawa_Y/0/1/0/all/0/1">Yasushi Fukazawa</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kawamuro_T/0/1/0/all/0/1">Taiki Kawamuro</a> We construct an X-ray spectral model from the clumpy torus in an active galactic nucleus (AGN), designated as “XCLUMPY”, utilizing the Monte Carlo […]

Rapid Luminosity Decline and Subsequent Reformation of the Innermost Dust Distribution in the Changing-look AGN Mrk 590. (arXiv:1904.08946v1 [astro-ph.GA])

Rapid Luminosity Decline and Subsequent Reformation of the Innermost Dust Distribution in the Changing-look AGN Mrk 590. (arXiv:1904.08946v1 [astro-ph.GA]) <a href="http://arxiv.org/find/astro-ph/1/au:+Kokubo_M/0/1/0/all/0/1">Mitsuru Kokubo</a> (Tohoku University), <a href="http://arxiv.org/find/astro-ph/1/au:+Minezaki_T/0/1/0/all/0/1">Takeo Minezaki</a> (The University of Tokyo) We examined long-term optical/near-infrared (NIR) flux variability of a “changing-look” active galactic nucleus (AGN) Mrk 590 between 1998 and 2007. Multi-band multi-epoch optical/NIR photometry […]

Ep. 527: Ancient Astronomy of the American Southwest

Ep. 527: Ancient Astronomy of the American Southwest Ancient peoples had no light pollution, and they knew the night skies very well. In fact, they depends on them to know when to plant and when to harvest. Today Pamela talks about the archeoastronomical sites of the American Southwest. We usually record Astronomy Cast every Friday […]

Carnival of Space #608

Carnival of Space #608 It’s that time again! This week’s Carnival of Space is hosted by Pamela Hoffman at the Everyday Spacer blog. Click here to read Carnival of Space #608. And if you’re interested in looking back, here’s an archive to all the past Carnivals of Space. If you’ve got a space-related blog, you should […]

Atomic Modeling of Photoionization Fronts in Nitrogen Gas. (arXiv:1904.08947v1 [astro-ph.SR])

Atomic Modeling of Photoionization Fronts in Nitrogen Gas. (arXiv:1904.08947v1 [astro-ph.SR]) <a href="http://arxiv.org/find/astro-ph/1/au:+Gray_W/0/1/0/all/0/1">William J. Gray</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Keiter_P/0/1/0/all/0/1">P. A. Keiter</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lefevre_H/0/1/0/all/0/1">H. Lefevre</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Patterson_C/0/1/0/all/0/1">C. R. Patterson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Davis_J/0/1/0/all/0/1">J. S. Davis</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Powell_K/0/1/0/all/0/1">K. G. Powell</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kuranz_C/0/1/0/all/0/1">C. C. Kuranz</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Drake_R/0/1/0/all/0/1">R. P. Drake</a> Photoionization fronts play a dominant role in many astrophysical environments, but remain difficult to […]

Testing $Lambda$CDM With Dwarf Galaxy Morphology. (arXiv:1904.08949v1 [astro-ph.GA])

Testing $Lambda$CDM With Dwarf Galaxy Morphology. (arXiv:1904.08949v1 [astro-ph.GA]) <a href="http://arxiv.org/find/astro-ph/1/au:+Xu_W/0/1/0/all/0/1">Weishuang Linda Xu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Randall_L/0/1/0/all/0/1">Lisa Randall</a> The leading tensions to the collisionless cold dark matter (CDM) paradigm are the “small-scale controversies”, discrepancies between observations at the dwarf-galactic scale and their simulational counterparts. In this work we consider methods to infer 3D morphological information on Local Group […]

The Vast Potential of Exoplanet Satellites for High-Energy Astrophysics. (arXiv:1904.08952v1 [astro-ph.IM])

The Vast Potential of Exoplanet Satellites for High-Energy Astrophysics. (arXiv:1904.08952v1 [astro-ph.IM]) <a href="http://arxiv.org/find/astro-ph/1/au:+Smith_K/0/1/0/all/0/1">Krista Lynne Smith</a> The photometric precision, monitoring baselines, and rapid, even sampling rates required by modern satellites designed for detecting the signal of transiting exoplanets are ideally suited to a large number of applications in high-energy astrophysics. I will exemplify this by discussing […]

Search for sub-solar mass ultracompact binaries in Advanced LIGO’s second observing run. (arXiv:1904.08976v1 [astro-ph.CO])

Search for sub-solar mass ultracompact binaries in Advanced LIGO’s second observing run. (arXiv:1904.08976v1 [astro-ph.CO]) The <a href="http://arxiv.org/find/astro-ph/1/au:+Collaboration_LIGO_Scientific/0/1/0/all/0/1">LIGO Scientific Collaboration</a>, the <a href="http://arxiv.org/find/astro-ph/1/au:+Collaboration_Virgo/0/1/0/all/0/1">Virgo Collaboration</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+authors_a/0/1/0/all/0/1">additional authors</a> We present an Advanced LIGO and Advanced Virgo search for sub-solar mass ultracompact objects in data obtained during Advanced LIGO’s second observing run. In contrast to a previous search […]

Sub-GeV Dark Matter Searches and Electric Field Studies for the LUX and LZ Experiments. (arXiv:1904.08979v1 [astro-ph.IM])

Sub-GeV Dark Matter Searches and Electric Field Studies for the LUX and LZ Experiments. (arXiv:1904.08979v1 [astro-ph.IM]) <a href="http://arxiv.org/find/astro-ph/1/au:+Tvrznikova_L/0/1/0/all/0/1">Lucie Tvrznikova</a> The nature of dark matter (DM) remains a mystery since it has so far eluded detection in the laboratory. To that end, the Large Underground Xenon (LUX) experiment was built to directly observe the interaction of […]

Observations of Solar Coronal Rain in Null Point Topologies. (arXiv:1904.08982v1 [astro-ph.SR])

Observations of Solar Coronal Rain in Null Point Topologies. (arXiv:1904.08982v1 [astro-ph.SR]) <a href="http://arxiv.org/find/astro-ph/1/au:+Mason_E/0/1/0/all/0/1">E. I. Mason</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Antiochos_S/0/1/0/all/0/1">S. K. Antiochos</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Viall_N/0/1/0/all/0/1">N. M. Viall</a> Coronal rain is the well-known phenomenon in which hot plasma high in the Sun’s corona undergoes rapid cooling (from > 10^6 K to < 10^4 K), condenses, and falls to the surface. […]

Gravitational probes of ultra-light axions. (arXiv:1904.09003v1 [astro-ph.CO])

Gravitational probes of ultra-light axions. (arXiv:1904.09003v1 [astro-ph.CO]) <a href="http://arxiv.org/find/astro-ph/1/au:+Grin_D/0/1/0/all/0/1">Daniel Grin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Amin_M/0/1/0/all/0/1">Mustafa A. Amin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gluscevic_V/0/1/0/all/0/1">Vera Gluscevic</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hlozek_R/0/1/0/all/0/1">Ren&#xe9;e Hl&#x1d2;zek</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Marsh_D/0/1/0/all/0/1">David J. E. Marsh</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Poulin_V/0/1/0/all/0/1">Vivian Poulin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Prescod_Weinstein_C/0/1/0/all/0/1">Chanda Prescod-Weinstein</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Smith_T/0/1/0/all/0/1">Tristan L. Smith</a> The axion is a hypothetical, well-motivated dark-matter particle whose existence would explain the lack of charge-parity violation in the strong […]

Performance of the Gemini Planet Imager Non-Redundant Mask and spectroscopy of two close-separation binaries HR 2690 and HD 142527. (arXiv:1904.09006v1 [astro-ph.IM])

Performance of the Gemini Planet Imager Non-Redundant Mask and spectroscopy of two close-separation binaries HR 2690 and HD 142527. (arXiv:1904.09006v1 [astro-ph.IM]) <a href="http://arxiv.org/find/astro-ph/1/au:+Greenbaum_A/0/1/0/all/0/1">Alexandra Z. Greenbaum</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Cheetham_A/0/1/0/all/0/1">Anthony Cheetham</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sivaramakrishnan_A/0/1/0/all/0/1">Anand Sivaramakrishnan</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rantakyro_F/0/1/0/all/0/1">Fredrik T. Rantakyr&#xf6;</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Duchene_G/0/1/0/all/0/1">Gaspard Duch&#xea;ne</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Tuthill_P/0/1/0/all/0/1">Peter Tuthill</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rosa_R/0/1/0/all/0/1">Robert J. De Rosa</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Oppenheimer_R/0/1/0/all/0/1">Rebecca Oppenheimer</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Macintosh_B/0/1/0/all/0/1">Bruce Macintosh</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ammons_S/0/1/0/all/0/1">S. Mark […]

New and Extended Data Processing of Mars Odyssey Neutron Spectrometer Data. (arXiv:1904.09036v1 [astro-ph.IM])

New and Extended Data Processing of Mars Odyssey Neutron Spectrometer Data. (arXiv:1904.09036v1 [astro-ph.IM]) <a href="http://arxiv.org/find/astro-ph/1/au:+Mesick_K/0/1/0/all/0/1">K.E. Mesick</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Feldman_W/0/1/0/all/0/1">W.C. Feldman</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Mullin_E/0/1/0/all/0/1">E.R. Mullin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Stonehill_L/0/1/0/all/0/1">L.C. Stonehill</a> The Los Alamos National Laboratory designed and built Mars Odyssey Neutron Spectrometer (MONS) has been in excellent health operating from February 2002 to the present. MONS measures the neutron leakage […]

Parameter Estimation for Scarce Stellar Populations. (arXiv:1904.09054v1 [astro-ph.GA])

Parameter Estimation for Scarce Stellar Populations. (arXiv:1904.09054v1 [astro-ph.GA]) <a href="http://arxiv.org/find/astro-ph/1/au:+Ramirez_Siordia_V/0/1/0/all/0/1">V. H. Ram&#xed;rez-Siordia</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bruzual_G/0/1/0/all/0/1">G. Bruzual</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sodi_B/0/1/0/all/0/1">B. Cervantes Sodi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bitsakis_T/0/1/0/all/0/1">T. Bitsakis</a> We present a Bayesian method to determine simultaneously the age, metallicity, distance modulus, and interstellar reddening by dust of any resolved stellar population, by comparing the observed and synthetic color magnitude diagrams on […]