output
19932026
most citedAtomically thin MoS2: A new direct-gap semiconductor

15.5k citations

Showing 2021 · astro-ph.GAShow all

10 papers · 2 filters

astro-ph.GA2021★ 14 cited

The Distance and Dynamical History of the Virgo Cluster Ultradiffuse Galaxy VCC 615

J. Christopher Mihos, Patrick R. Durrell, Elisa Toloba +6

We use deep Hubble Space Telescope imaging to derive a distance to the Virgo Cluster ultradiffuse galaxy (UDG) VCC 615 using the tip of the red giant branch (TRGB) distance estimat…

astro-ph.GA2021★ 21 cited

The ALFALFA Almost-Dark Galaxy AGC~229101: A Two Billion Solar Mass HI Cloud with a Very Low Surface Brightness Optical Counterpart

Lukas Leisman, Katherine L. Rhode, Catherine Ball +11

We present results from deep HI and optical imaging of AGC 229101, an unusual HI source detected at v = 7116 km/s in the ALFALFA survey. Initially classified as a can…

astro-ph.GA2021

The Baryonic Tully-Fisher Relation in the Local Group and the Equivalent Circular Velocity of Pressure Supported Dwarfs

Stacy McGaugh, Federico Lelli, Jim Schombert +4

We explore the Baryonic Tully-Fisher Relation in the Local Group. Rotationally supported Local Group galaxies adhere precisely to the relation defined by more distant galaxies. For…

astro-ph.GA2021★ 99 cited

Final Targeting Strategy for the SDSS-IV APOGEE-2N Survey

Rachael L. Beaton, Ryan J. Oelkers, Christian R. Hayes +57

APOGEE-2 is a dual-hemisphere, near-infrared (NIR), spectroscopic survey with the goal of producing a chemo-dynamical mapping of the Milky Way Galaxy. The targeting for APOGEE-2 is…

astro-ph.GA2021★ 9 cited

Mass-Velocity Dispersion Relation in MaNGA Brightest Cluster Galaxies

Yong Tian, Han Cheng, Stacy S. McGaugh +2

We investigate a kinematic scaling relation between the baryonic mass and the flat velocity dispersion, i.e. mass-velocity dispersion relation (MVDR), from the brightest cluster ga…

astro-ph.GA2021★ 8 cited

A Comparison of the UV and HI Properties of the Extended UV (XUV) Disk Galaxies NGC 2541, NGC 5832 and ESO406-042

M. Das, Yadav, J. +11

We present a UV study of 3 extended UV (XUV) galaxies that we have observed with the UVIT and the GMRT. XUV galaxies show filamentary or diffuse star formation well beyond their op…

astro-ph.GA2021★ 6 cited

A Deep Census of Outlying Star Formation in the M101 Group

Ray Garner, J. Christopher Mihos, Paul Harding +1

We present deep, narrowband imaging of the nearby spiral galaxy M101 and its group environment to search for star-forming dwarf galaxies and outlying HII regions. Using the Burrell…

astro-ph.GA2021★ 20 cited

Comparing the Inner and Outer Star Forming Complexes in the Nearby Spiral Galaxies NGC 628, NGC 5457 and NGC 6946 using UVIT Observations

Jyoti Yadav, Mousumi Das, Narendra Nath Patra +5

We present a far-UV (FUV) study of the star-forming complexes (SFCs) in three nearby galaxies using the Ultraviolet Imaging Telescope (UVIT). The galaxies are close to face-on and…

astro-ph.GA2021★ 14 cited

A cautionary tale in fitting galaxy rotation curves with Bayesian techniques: does Newton's constant vary from galaxy to galaxy?

Pengfei Li, Federico Lelli, Stacy McGaugh +2

The application of Bayesian techniques to astronomical data is generally non-trivial because the fitting parameters can be strongly degenerated and the formal uncertainties are the…

astro-ph.GA2021★ 24 cited

SHAM through the lens of a hydrodynamical simulation

Ginevra Favole, Antonio D. Montero-Dorta, M. Celeste Artale +3

We use the IllustrisTNG100 hydrodynamical simulation to study the dependence of the galaxy two-point correlation function on a broad range of secondary subhalo and galactic propert…