Showing 2022 · astro-ph.GAShow all

64 papers · 2 filters

astro-ph.GA2022★ 24 cited

JCMT BISTRO Observations: Magnetic Field Morphology of Bubbles Associated with NGC 6334

Mehrnoosh Tahani, Pierre Bastien, Ray S. Furuya +142

We study the HII regions associated with the NGC 6334 molecular cloud observed in the sub-millimeter and taken as part of the B-fields In STar-forming Region Observations (BISTRO)…

astro-ph.GA2022★ 52 cited

The Pan-STARRS1 z>5.6 quasar survey II: Discovery of 55 Quasars at 5.6<z<6.5

Eduardo Banados, Jan-Torge Schindler, Bram P. Venemans +20

The identification of bright quasars at z>6 enables detailed studies of supermassive black holes, massive galaxies, structure formation, and the state of the intergalactic medium w…

astro-ph.GA2022★ 26 cited

The JCMT BISTRO-2 Survey: Magnetic Fields of the Massive DR21 Filament

Tao-Chung Ching, Keping Qiu, Di Li +154

We present 850 m dust polarization observations of the massive DR21 filament from the B-fields In STar-forming Region Observations (BISTRO) survey, using the POL-2 polarimeter a…

astro-ph.GA2022★ 40 cited

The Pan-STARRS1 Quasar Survey: III. The Quasar Luminosity Function

Jan-Torge Schindler, Eduardo Bañados, Thomas Connor +9

We present the type-1 quasar luminosity function (QLF) based on the Pan-STARRS1 (PS1) quasar survey. The PS1 sample includes 125 quasars at with $…

astro-ph.GA2022★ 5 cited

Discovery of a New Molecular Bubble-Outflow Structure in the Taurus B18 Cloud

Yan Duan, Di Li, Paul F. Goldsmith +5

Star formation can produce bubbles and outflows, as a result of stellar feedback. Outflows and bubbles inject momentum and energy into the surrounding interstellar medium, and so a…

astro-ph.GA2022★ 31 cited

Timing the r-Process Enrichment of the Ultra-Faint Dwarf Galaxy Reticulum II

Joshua D. Simon, Thomas M. Brown, Burçin Mutlu-Pakdil +65

The ultra-faint dwarf galaxy Reticulum II (Ret II) exhibits a unique chemical evolution history, with 72 +10/-12% of its stars strongly enhanced in r-process elements. We present d…

astro-ph.GA2022★ 13 cited

Position and Proper Motion of Sagittarius A* in the ICRF3 Frame from VLBI Absolute Astrometry

David Gordon, Aletha de Witt, Christopher S. Jacobs

Sagittarius A* (Sgr A*) is a strong, compact radio source believed to be powered by a super-massive black hole at the galactic center. Extinction by dust and gas in the galactic pl…

astro-ph.GA2022★ 22 cited

The galaxy mass-size relation in CARLA clusters and proto-clusters at 1.4 < z < 2.8: larger cluster galaxy sizes

Anton V. Afanasiev, Simona Mei, Hao Fu +12

(Abridged) We study the galaxy mass-size relation in CARLA spectroscopically confirmed clusters at , which span a total stellar mass $11.3<\mathrm{log}(M^c_*/M_{\odot})<…

astro-ph.GA2022★ 16 cited

CARMA-NRO Orion Survey: unbiased survey of dense cores and core mass functions in Orion A

Hideaki Takemura, Fumitaka Nakamura, Héctor G. Arce +15

The mass distribution of dense cores is a potential key to understand the process of star formation. Applying dendrogram analysis to the CARMA-NRO Orion CO (=1--0) data,…

astro-ph.GA2022★ 6 cited

Searching for converging flows of atomic gas onto a molecular cloud

Mark Heyer, Paul F. Goldsmith, Robert Simon +2

We present new observations of [CII] fine structure line emission from an isolated molecular cloud using the upGREAT instrument onboard SOFIA. These data are analyzed together with…

astro-ph.GA2022★ 21 cited

A Highly Magnified Gravitationally Lensed Red QSO at z = 2.5 with a Significant Flux Ratio Anomaly

Eilat Glikman, Cristian E. Rusu, Geoff C. -F. Chen +12

We present the discovery of a gravitationally lensed dust-reddened QSO at z = 2.517, identified in a survey for QSOs by infrared selection. Hubble Space Telescope imaging reveals a…

astro-ph.GA2022★ 15 cited

A Sample of Dust Attenuation Laws for DES Supernova Host Galaxies

J. Duarte, S. González-Gaitán, A. Mourao +58

Type Ia supernovae (SNe Ia) are useful distance indicators in cosmology, provided their luminosity is standardized by applying empirical corrections based on light-curve properties…

astro-ph.GA2022★ 27 cited

Probing the Structure and Evolution of BASS AGN through Eddington Ratios

Tonima Tasnim Ananna, C. Megan Urry, Claudio Ricci +23

We constrain the intrinsic Eddington ratio (\lamEdd ) distribution function for local AGN in bins of low and high obscuration (log NH <= 22 and 22 < log NH < 25), using the Swift-B…

astro-ph.GA2022★ 18 cited

BASS. XXXVI. Constraining the Local Supermassive Black Hole - Halo Connection with BASS DR2 AGN

M. C. Powell, S. W. Allen, T. Caglar +12

We investigate the connection between supermassive black holes (SMBHs) and their host dark matter halos in the local universe using the clustering statistics and luminosity functio…

astro-ph.GA2022★ 19 cited

Identification of Galaxy-Galaxy Strong Lens Candidates in the DECam Local Volume Exploration Survey Using Machine Learning

E. A. Zaborowski, A. Drlica-Wagner, F. Ashmead +88

We perform a search for galaxy-galaxy strong lens systems using a convolutional neural network (CNN) applied to imaging data from the first public data release of the DECam Local V…

astro-ph.GA2022★ 31 cited

The JCMT BISTRO Survey: A Spiral Magnetic Field in a Hub-filament Structure, Monoceros R2

Jihye Hwang, Jongsoo Kim, Kate Pattle +157

We present and analyze observations of polarized dust emission at 850 m towards the central 1 pc 1 pc hub-filament structure of Monoceros R2 (Mon R2). The data are obta…

astro-ph.GA2022★ 20 cited

BICEP / Keck XVI: Characterizing Dust Polarization through Correlations with Neutral Hydrogen

Keck Collaboration, P. A. R. Ade, Z. Ahmed +92

We characterize Galactic dust filaments by correlating BICEP/Keck and Planck data with polarization templates based on neutral hydrogen (H I) observations. Dust polarization is imp…

astro-ph.GA2022★ 25 cited

Spiral Arms are Metal Freeways: Azimuthal Gas-Phase Metallicity Variations in Simulated Cosmological Zoom-in Flocculent Disks

Matthew E. Orr, Blakesley Burkhart, Andrew Wetzel +7

We examine the azimuthal variations in gas-phase metallicity profiles in simulated Milky Way mass disk galaxies from the Feedback in Realistic Environments (FIRE-2) cosmological zo…

astro-ph.GA2022★ 7 cited

Polarized Emission From Four Supernova Remnants In The THOR Survey

Russell Shanahan, Jeroen M. Stil, Loren Anderson +6

We present polarization and Faraday rotation for the supernova remnants (SNRs) G46.8-0.3, G43.3-0.2, G41.1-0.3, and G39.2-0.3 in L-band (1-2 GHz) radio continuum in The HI/OH/Recom…

astro-ph.GA2022★ 26 cited

Euclid preparation. XXV. The Euclid Morphology Challenge -- Towards model-fitting photometry for billions of galaxies

Euclid Collaboration, E. Merlin, M. Castellano +218

The ESA Euclid mission will provide high-quality imaging for about 1.5 billion galaxies. A software pipeline to automatically process and analyse such a huge amount of data in real…

astro-ph.GA2022★ 26 cited

Characterising the Intracluster Light over the Redshift Range in the DES-ACT Overlap

Jesse B. Golden-Marx, Y. Zhang, R. L. C. Ogando +66

We characterise the properties and evolution of Bright Central Galaxies (BCGs) and the surrounding intracluster light (ICL) in galaxy clusters identified in overlapping regions of…

astro-ph.GA2022★ 11 cited

Lessons Learned from the Two Largest Galaxy Morphological Classification Catalogues built by Convolutional Neural Networks

Ting-Yun Cheng, H. Domínguez Sánchez, J. Vega-Ferrero +54

We compare the two largest galaxy morphology catalogues, which separate early and late type galaxies at intermediate redshift. The two catalogues were built by applying supervised…

astro-ph.GA2022★ 5 cited

Dust Reverberation Mapping and Light-Curve Modelling of Zw229-015

E. Guise, S. F. Hönig, V. Gorjian +12

Multiwavelength variability studies of active galactic nuclei (AGN) can be used to probe their inner regions which are not directly resolvable. Dust reverberation mapping (DRM) est…

astro-ph.GA2022★ 7 cited

Kinematic Lensing Inference I: Characterizing Shape Noise with Simulated Analyses

Pranjal R. S., Elisabeth Krause, Hung-Jin Huang +4

The unknown intrinsic shape of source galaxies is one of the largest uncertainties of weak gravitational lensing (WL). It results in the so-called shape noise at the level of $σ_ε^…