RAS_WEB (Page 4,430)

Coupling Poynting-Robertson Effect in Mass Accretion Flow Physics. (arXiv:1904.01013v1 [gr-qc]) <a href="http://arxiv.org/find/gr-qc/1/au:+Falco_V/0/1/0/all/0/1">Vittorio De Falco</a> In my doctoral thesis, I have focussed my attention on radiation processes in high-energy astrophysics connected with the accretion flow physics around compact objects. Generally, a radiation field beside to exert an outward radiation pressure, there is also the presence of a radiation drag force, which both can drastically change or even halt the motion of the surrounding matter. The radiation drag force, known as Poynting-Robertson effect, acts as a dissipative force against the matter’s orbital motion, removing very efficiently angular momentum and energy from it. The thesis is organised inRead More →

Rock ‘n’ Roll Solutions to the Hubble Tension. (arXiv:1904.01016v1 [astro-ph.CO]) <a href="http://arxiv.org/find/astro-ph/1/au:+Agrawal_P/0/1/0/all/0/1">Prateek Agrawal</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Cyr_Racine_F/0/1/0/all/0/1">Francis-Yan Cyr-Racine</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Pinner_D/0/1/0/all/0/1">David Pinner</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Randall_L/0/1/0/all/0/1">Lisa Randall</a> Local measurements of the Hubble parameter are increasingly in tension with the value inferred from a $Lambda$CDM fit to the cosmic microwave background (CMB) data. In this paper, we construct scenarios in which evolving scalar fields significantly ease this tension by adding energy to the Universe around recombination in a narrow redshift window. We identify solutions of $V propto phi^{2 n}$ with simple asymptotic behavior, both oscillatory (rocking) and rolling. These are the first solutions of this kind in which the field evolutionRead More →

Theoretical Reflectance Spectra of Earth-Like Planets through Their Evolutions: Impact of Clouds on the Detectability of Oxygen, Water, and Methane with Future Direct Imaging Missions. (arXiv:1904.01019v1 [astro-ph.EP]) <a href="http://arxiv.org/find/astro-ph/1/au:+Kawashima_Y/0/1/0/all/0/1">Yui Kawashima</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Rugheimer_S/0/1/0/all/0/1">Sarah Rugheimer</a> In the near-future, atmospheric characterization of Earth-like planets in the habitable zone will become possible via reflectance spectroscopy with future telescopes such as the proposed LUVOIR and HabEx missions. While previous studies have considered the effect of clouds on the reflectance spectra of Earth-like planets, the molecular detectability considering a wide range of cloud properties has not been previously explored in detail. In this study, we explore the effect of cloud altitudeRead More →

Gaia DR2 orbital properties for field stars with globular cluster-like CN band strengths. (arXiv:1904.01021v1 [astro-ph.SR]) <a href="http://arxiv.org/find/astro-ph/1/au:+Savino_A/0/1/0/all/0/1">A. Savino</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Posti_L/0/1/0/all/0/1">L. Posti</a> Large spectroscopic surveys of the Milky Way have revealed that a small population of stars in the halo have light element abundances comparable to those found in globular clusters. The favoured explanation for the peculiar abundances of these stars is that they originated inside a globular cluster and were subsequently lost. Using orbit calculations we assess the likelihood that an existing sample of 57 field stars with globular cluster-like CN band strength originated in any of the currently known Milky Way globular clusters. UsingRead More →

Cosmological exploitation of the size function of cosmic voids identified in the distribution of biased tracers. (arXiv:1904.01022v1 [astro-ph.CO]) <a href="http://arxiv.org/find/astro-ph/1/au:+Contarini_S/0/1/0/all/0/1">Sofia Contarini</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ronconi_T/0/1/0/all/0/1">Tommaso Ronconi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Marulli_F/0/1/0/all/0/1">Federico Marulli</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Moscardini_L/0/1/0/all/0/1">Lauro Moscardini</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Veropalumbo_A/0/1/0/all/0/1">Alfonso Veropalumbo</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Baldi_M/0/1/0/all/0/1">Marco Baldi</a> Cosmic voids are large underdense regions that, together with galaxy clusters, filaments and walls, build up the large-scale structure of the Universe. The void size function provides a powerful probe to test the cosmological framework. However, to fully exploit this statistics, the void sample has to be properly cleaned from spurious objects. Furthermore, the bias of the mass tracers used to detect these regions has to be taken intoRead More →

Satellites of Satellites: The Case for Carina and Fornax. (arXiv:1904.01028v1 [astro-ph.GA]) <a href="http://arxiv.org/find/astro-ph/1/au:+Pardy_S/0/1/0/all/0/1">Stephen A. Pardy</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+DOnghia_E/0/1/0/all/0/1">Elena D&#x27;Onghia</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Navarro_J/0/1/0/all/0/1">Julio Navarro</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Grand_R/0/1/0/all/0/1">Robert Grand</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gomez_F/0/1/0/all/0/1">Facundo A. Gomez</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:+Pakmor_R/0/1/0/all/0/1">Rudiger Pakmor</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Simpson_C/0/1/0/all/0/1">Christine Simpson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Springel_V/0/1/0/all/0/1">Volker Springel</a> We use the Auriga cosmological simulations of Milky Way (MW)-mass galaxies and their surroundings to study the satellite populations of dwarf galaxies in $Lambda$CDM. As expected from prior work, the number of satellites above a fixed stellar mass is a strong function of the mass of the primary dwarf. For galaxies as luminous as the Large Magellanic Cloud (LMC), and for halos as massive asRead More →

Probing primordial chirality with galaxy spins. (arXiv:1904.01029v1 [astro-ph.CO]) <a href="http://arxiv.org/find/astro-ph/1/au:+Yu_H/0/1/0/all/0/1">Hao-Ran Yu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Yu_Y/0/1/0/all/0/1">Yu Yu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Motloch_P/0/1/0/all/0/1">Pavel Motloch</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Pen_U/0/1/0/all/0/1">Ue-Li Pen</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wang_H/0/1/0/all/0/1">Huiyuan Wang</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Mo_H/0/1/0/all/0/1">Houjun Mo</a> Chiral symmetry is maximally violated in weak interactions. In this letter, we propose a helicity measurement to detect primordial chiral violation. We point out that observations of galaxy angular momentum directions (spins), which are frozen in during the galaxy formation process, provide a fossil chiral observable. From the clustering-mode of large scale structure of the universe, we can construct a spin-mode in the Lagrangian space. In standard model, a strong symmetric correlation between the left and right helical componentsRead More →

Beyond BAO: improving cosmological constraints from BOSS with measurement of the void-galaxy cross-correlation. (arXiv:1904.01030v1 [astro-ph.CO]) <a href="http://arxiv.org/find/astro-ph/1/au:+Nadathur_S/0/1/0/all/0/1">Seshadri Nadathur</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Carter_P/0/1/0/all/0/1">Paul M. Carter</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Percival_W/0/1/0/all/0/1">Will J. Percival</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Winther_H/0/1/0/all/0/1">Hans A. Winther</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bautista_J/0/1/0/all/0/1">Julian Bautista</a> We present a measurement of the anisotropic void-galaxy cross-correlation function in the CMASS galaxy sample of the BOSS DR12 data release. We perform a joint fit to the data for redshift space distortions (RSD) due to galaxy peculiar velocities and anisotropies due to the Alcock-Paczynski (AP) effect, for the first time using a velocity field reconstruction technique to remove the complicating effects of RSD in the void centre positions themselves. Fits toRead More →

A metal-poor ultra compact dwarf galaxy at a kiloparsec distance from the low-mass elliptical galaxy FCC47. (arXiv:1904.01041v1 [astro-ph.GA]) <a href="http://arxiv.org/find/astro-ph/1/au:+Fahrion_K/0/1/0/all/0/1">Katja Fahrion</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Georgiev_I/0/1/0/all/0/1">Iskren Georgiev</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hilker_M/0/1/0/all/0/1">Michael Hilker</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lyubenova_M/0/1/0/all/0/1">Mariya Lyubenova</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ven_G/0/1/0/all/0/1">Glenn van de Ven</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Alfaro_Cuello_M/0/1/0/all/0/1">Mayte Alfaro-Cuello</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Corsini_E/0/1/0/all/0/1">Enrico M. Corsini</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sarzi_M/0/1/0/all/0/1">Marc Sarzi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+McDermid_R/0/1/0/all/0/1">Richard M. McDermid</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Zeeuw_T/0/1/0/all/0/1">Tim de Zeeuw</a> Photometric surveys of galaxy clusters have revealed a large number of ultra compact dwarfs (UCDs) around predominantly massive elliptical galaxies. Their origin is still debated as some UCDs are considered to be the remnant nuclei of stripped dwarf galaxies while others seem to mark the high-mass end of the star cluster population.Read More →

Effects of the QCD Equation of State and Lepton Asymmetry on Primordial Gravitational Waves. (arXiv:1904.01046v1 [hep-ph]) <a href="http://arxiv.org/find/hep-ph/1/au:+Hajkarim_F/0/1/0/all/0/1">Fazlollah Hajkarim</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Schaffner_Bielich_J/0/1/0/all/0/1">J&#xfc;rgen Schaffner-Bielich</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Wystub_S/0/1/0/all/0/1">Stephan Wystub</a>, <a href="http://arxiv.org/find/hep-ph/1/au:+Wygas_M/0/1/0/all/0/1">Mandy M. Wygas</a> Using the quantum chromodynamics (QCD) equation of state (EoS) from lattice calculations we investigate effects from QCD on primordial gravitational waves (PGWs) produced during the inflationary era. We also consider different cases for vanishing and nonvanishing lepton asymmetry where the latter one is constrained by cosmic microwave background experiments. Our results show that there is up to a few percent deviation in the predicted gravitational wave background in the frequency range around the QCD transition ($10^{-10}-Read More →

Simulated neutrino signals of low and intermediate energy neutrinos on Cd detectors. (arXiv:1904.01056v1 [physics.ins-det]) <a href="http://arxiv.org/find/physics/1/au:+Sinatkas_J/0/1/0/all/0/1">J. Sinatkas</a>, <a href="http://arxiv.org/find/physics/1/au:+Tsaktsara_V/0/1/0/all/0/1">V. Tsaktsara</a>, <a href="http://arxiv.org/find/physics/1/au:+Kosmas_O/0/1/0/all/0/1">Odysseas Kosmas</a> Neutrino-nucleus reactions cross sections, obtained for neutrino energies in the range $varepsilon_{nu}leq 100-120$ MeV (low- and intermediate-energy range), which refer to promising neutrino detection targets of current terrestrial neutrino experiments, are presented and discussed. At first, we evaluated original cross sections for elastic scattering of neutrinos produced from various astrophysical and laboratory neutrino sources with the most abundant Cd isotopes $^{112}$Cd, $^{114}$Cd and $^{116}$Cd. These isotopes constitute the main material of the COBRA detector aiming to search for neutrinoless double beta decayRead More →

The abundance and physical properties of O VII and O VIII X-ray absorption systems in the EAGLE simulations. (arXiv:1904.01057v1 [astro-ph.GA]) <a href="http://arxiv.org/find/astro-ph/1/au:+Wijers_N/0/1/0/all/0/1">Nastasha A. Wijers</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Schaye_J/0/1/0/all/0/1">Joop Schaye</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Oppenheimer_B/0/1/0/all/0/1">Benjamin D. Oppenheimer</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Crain_R/0/1/0/all/0/1">Robert A. Crain</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Nicastro_F/0/1/0/all/0/1">Fabrizio Nicastro</a> We use the EAGLE cosmological, hydrodynamical simulations to predict the column density and equivalent width distributions of intergalactic O VII ($E=574$ eV) and O VIII ($E=654$ eV) absorbers at low redshift. These two ions are predicted to account for 40% of the gas-phase oxygen, which implies that they are key tracers of cosmic metals. We find that their column density distributions evolve little at observable column densitiesRead More →

The gravitational redshift monitored with RadioAstron from near Earth up to 350,000 km. (arXiv:1904.01060v1 [gr-qc]) <a href="http://arxiv.org/find/gr-qc/1/au:+Nunes_N/0/1/0/all/0/1">N. V. Nunes</a> (1), <a href="http://arxiv.org/find/gr-qc/1/au:+Bartel_N/0/1/0/all/0/1">N. Bartel</a> (1), <a href="http://arxiv.org/find/gr-qc/1/au:+Bietenholz_M/0/1/0/all/0/1">M. F. Bietenholz</a> (1 and 2), <a href="http://arxiv.org/find/gr-qc/1/au:+Zakhvatkin_M/0/1/0/all/0/1">M. V. Zakhvatkin</a> (3), <a href="http://arxiv.org/find/gr-qc/1/au:+Litvinov_D/0/1/0/all/0/1">D. A. Litvinov</a> (4, 5 and 6), <a href="http://arxiv.org/find/gr-qc/1/au:+Rudenko_V/0/1/0/all/0/1">V. N. Rudenko</a> (4), <a href="http://arxiv.org/find/gr-qc/1/au:+Gurvits_L/0/1/0/all/0/1">L. I. Gurvits</a> (7 and 8), <a href="http://arxiv.org/find/gr-qc/1/au:+Granato_G/0/1/0/all/0/1">G. Granato</a> (8), <a href="http://arxiv.org/find/gr-qc/1/au:+Dirkx_D/0/1/0/all/0/1">D. Dirkx</a> (8) ((1) York University, (2) South African Radio Astronomy Observatory, (3) Keldysh Institute for Applied Mathematics, (4) Sternberg Astronomical Institute, (5) Astro Space Center, (6) Bauman Moscow State Technical University, (7) Joint Institute for VLBI ERIC, (8) Delft University of Technology) WeRead More →

Advanced Aspects of the Galactic Habitability. (arXiv:1904.01062v1 [physics.pop-ph]) <a href="http://arxiv.org/find/physics/1/au:+%7B%5CDJ%7Dosovic_V/0/1/0/all/0/1">Vladimir &#x110;o&#x161;ovi&#x107;</a>, <a href="http://arxiv.org/find/physics/1/au:+Vukotic_B/0/1/0/all/0/1">Branislav Vukoti&#x107;</a>, <a href="http://arxiv.org/find/physics/1/au:+Cirkovic_M/0/1/0/all/0/1">Milan M. &#x106;irkovi&#x107;</a> Context. Astrobiological evolution of the Milky Way (or the shape of its “astrobiological landscape”) has emerged as one of the key research topics in recent years. In order to build precise, quantitative models of the Galactic habitability, we need to account for two opposing tendencies of life and intelligence in the most general context: the tendency to spread to all available ecological niches (conventionally dubbed “colonization”) and the tendency to succumb to various types of existential catastrophes (“catastrophism”). These evolutionary tendencies have become objects of study inRead More →

Extreme hydrodynamic losses of Earth-like atmospheres in the habitable zones of very active stars. (arXiv:1904.01063v1 [astro-ph.EP]) <a href="http://arxiv.org/find/astro-ph/1/au:+Johnstone_C/0/1/0/all/0/1">C. P. Johnstone</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Khodachenko_M/0/1/0/all/0/1">M. L. Khodachenko</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Luftinger_T/0/1/0/all/0/1">T. L&#xfc;ftinger</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kislyakova_K/0/1/0/all/0/1">K. G. Kislyakova</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lammer_H/0/1/0/all/0/1">H. Lammer</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gudel_M/0/1/0/all/0/1">M. G&#xfc;del</a> Aims. In this letter, we calculate for the first time the full transonic hydrodynamic escape of an Earth-like atmosphere. We consider the case of an Earth-mass planet with an atmospheric composition identical to that of the current Earth orbiting at 1 AU around a young and very active solar mass star. Methods. To model the upper atmosphere, we used the Kompot Code, which is a first-principles model thatRead More →

Luminosity Ratio between [O IV] 25.89 um Line and Nuclear Continuum 12 um as Diagnostic for “Buried” AGN. (arXiv:1904.01065v1 [astro-ph.HE]) <a href="http://arxiv.org/find/astro-ph/1/au:+Yamada_S/0/1/0/all/0/1">Satoshi Yamada</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:+Tanimoto_A/0/1/0/all/0/1">Atsushi Tanimoto</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kawamuro_T/0/1/0/all/0/1">Taiki Kawamuro</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Imanishi_M/0/1/0/all/0/1">Masatoshi Imanishi</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Toba_Y/0/1/0/all/0/1">Yoshiki Toba</a> We propose new diagnostics that utilize the [O IV] 25.89 $mu$m and nuclear (subarcsecond scale) 12 $mu$m luminosity ratio for identifying whether an AGN is deeply `buried’ in their surrounding material. Utilizing a sample of 16 absorbed AGNs at redshifts lower than 0.03 in the Swift/BAT catalog observed with Suzaku, we find that AGNs with small scattering fractions ($Read More →

CG X-1: an eclipsing Wolf-Rayet ULX in the Circinus galaxy. (arXiv:1904.01066v1 [astro-ph.HE]) <a href="http://arxiv.org/find/astro-ph/1/au:+Qiu_Y/0/1/0/all/0/1">Yanli Qiu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Soria_R/0/1/0/all/0/1">Roberto Soria</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wang_S/0/1/0/all/0/1">Song Wang</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wiktorowicz_G/0/1/0/all/0/1">Grzegorz Wiktorowicz</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Liu_J/0/1/0/all/0/1">Jifeng Liu</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bai_Y/0/1/0/all/0/1">Yu Bai</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bogomazov_A/0/1/0/all/0/1">Alexey Bogomazov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Stefano_R/0/1/0/all/0/1">Rosanne Di Stefano</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Walton_D/0/1/0/all/0/1">Dominic J. Walton</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Xu_X/0/1/0/all/0/1">Xiaojie Xu</a> We investigated the time-variability and spectral properties of the eclipsing X-ray source Circinus Galaxy X-1 (GG X-1), using Chandra, XMM-Newton and ROSAT. We phase-connected the lightcurves observed over 20 years, and obtained a best-fitting period $P = (25,970.0 pm 0.1)$ s $approx$7.2 hr, and a period derivative $dot{P}/P = ( 10.2pm4.6) times 10^{-7}$ yr$^{-1}$. The X-ray lightcurve shows asymmetric eclipses, withRead More →

Astro2020 Science White Paper: Construction of an L* Galaxy: the Transformative Power of Wide Fields for Revealing the Past, Present and Future of the Great Andromeda System. (arXiv:1904.01074v1 [astro-ph.GA]) <a href="http://arxiv.org/find/astro-ph/1/au:+Gilbert_K/0/1/0/all/0/1">Karoline M. Gilbert</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Tollerud_E/0/1/0/all/0/1">Erik J. Tollerud</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Anderson_J/0/1/0/all/0/1">Jay Anderson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Beaton_R/0/1/0/all/0/1">Rachael L. Beaton</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bell_E/0/1/0/all/0/1">Eric F. Bell</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Brooks_A/0/1/0/all/0/1">Alyson Brooks</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Brown_T/0/1/0/all/0/1">Thomas M. Brown</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Bullock_J/0/1/0/all/0/1">James Bullock</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Carlin_J/0/1/0/all/0/1">Jeffrey L. Carlin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Collins_M/0/1/0/all/0/1">Michelle Collins</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Cooper_A/0/1/0/all/0/1">Andrew Cooper</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Crnojevic_D/0/1/0/all/0/1">Denija Crnojevic</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dalcanton_J/0/1/0/all/0/1">Julianne Dalcanton</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Pino_A/0/1/0/all/0/1">Andres del Pino</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+DSouza_R/0/1/0/all/0/1">Richard D&#x27;Souza</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Escala_I/0/1/0/all/0/1">Ivanna Escala</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Fardal_M/0/1/0/all/0/1">Mark Fardal</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Font_A/0/1/0/all/0/1">Andreea Font</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Geha_M/0/1/0/all/0/1">Marla Geha</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Guhathakurta_P/0/1/0/all/0/1">Puragra Guhathakurta</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kirby_E/0/1/0/all/0/1">Evan Kirby</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lewis_G/0/1/0/all/0/1">Geraint F. Lewis</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Marshall_J/0/1/0/all/0/1">JenniferRead More →