output
19922026
Showing 2021 · astro-ph.GAShow all

20 papers · 2 filters

astro-ph.GA2021★ 53 cited

Stellar Abundance Maps of the Milky Way Disk

Anna-Christina Eilers, David W. Hogg, Hans-Walter Rix +4

To understand the formation of the Milky Way's prominent bar it is important to know whether stars in the bar differ in the chemical element composition of their birth material as…

astro-ph.GA2021

ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions -- V. Hierarchical fragmentation and gas dynamics in IRDC G034.43+00.24

Hong-Li Liu, Anandmayee Tej, Tie Liu +35

We present new 3-mm continuum and molecular lines observations from the ATOMS survey towards the massive protostellar clump, MM1, located in the filamentary infrared dark cloud (IR…

astro-ph.GA2021★ 19 cited

Galactic Chemical Evolution of Radioactive Isotopes with an s-process Contribution

T. C. L. Trueman, B. Côté, A. Yagüe López +5

Analysis of inclusions in primitive meteorites reveals that several short-lived radionuclides (SLRs) with half-lives Myr existed in the early Solar System (ESS). We inves…

astro-ph.GA2021★ 5 cited

A small radio galaxy at z=4.026

Krisztina É. Gabányi, Sándor Frey, Tao An +8

Less than radio-loud active galactic nuclei (AGN) are known above redshift . Around of them have been observed at milliarcsecond (mas) scale resolution with very long…

astro-ph.GA2021★ 19 cited

CAPOS: The bulge Cluster APOgee Survey III. Spectroscopic Tomography of Tonantzintla 2

José G. Fernández-Trincado, Sandro Villanova, Doug Geisler +10

(ABRIDGED) We have performed the first detailed spectral analysis of red giant members of the relatively high-metallicity globular cluster (GC) Tononzintla~2 (Ton~2) using high-res…

astro-ph.GA2021★ 8 cited

European VLBI Network Observations of the Proposed Dual AGN SDSS J101022.95+141300.9

Patrik Milán Veres, Krisztina É. Gabányi, Sándor Frey +3

During galaxy merger events, the supermassive black holes in the center of the galaxies may form a pair of active galactic nuclei (AGN) with kpc-scale or even pc-scale separation.…

astro-ph.GA2021★ 11 cited

The Fe(n, γ)Fe Cross Section from the Surrogate Ratio Method and Its Effect on the Fe Nucleosynthesis

S. Q. Yan, X. Y. Li, K. Nishio +39

The long-lived Fe (with a half-life of 2.62 Myr) is a crucial diagnostic of active nucleosynthesis in the Milky Way galaxy and in supernovae near the solar system. The neutr…

astro-ph.GA2021★ 48 cited

Chemical Cartography with APOGEE: Mapping Disk Populations with a Two-Process Model and Residual Abundances

David H. Weinberg, Jon A. Holtzman, Jennifer A. Johnson +33

We apply a novel statistical analysis to measurements of 16 elemental abundances in 34,410 Milky Way disk stars from the final data release (DR17) of APOGEE-2. Building on recent w…

astro-ph.GA2021★ 6 cited

Radio emission from dust-obscured galaxies

Krisztina É. Gabányi, Sándor Frey, Krisztina Perger

The coevolution of galaxies and their central supermassive black holes is a subject of intense research. A class of objects, the dust-obscured galaxies (DOGs) are particularly inte…

astro-ph.GA2021★ 17 cited

An ALMA study of outflow parameters of protoclusters: outflow feedback to maintain the turbulence

T. Baug, Ke Wang, Tie Liu +14

With the aim of understanding the role of outflows in star formation, we performed a statistical study of the physical parameters of outflows in eleven massive protoclusters associ…

astro-ph.GA2021★ 13 cited

Molecular Cloud Cores with High Deuterium Fractions: Nobeyama Mapping Survey

Ken'ichi Tatematsu, Gwanjeong Kim, Tie Liu +35

We present the results of on-the-fly mapping observations of 44 fields containing 107 SCUBA-2 cores in the emission lines of molecules, NH, HCN, and CCS at 8294 GHz…

astro-ph.GA2021★ 37 cited

CAPOS: The bulge Cluster APOgee Survey I. Overview and initial ASPCAP results

Doug Geisler, Sandro Villanova, Julia E. O'Connell +39

Context. Bulge globular clusters (BGCs) are exceptional tracers of the formation and chemodynamical evolution of this oldest Galactic component. However, until now, observational d…

astro-ph.GA2021★ 4 cited

Multi-scale Radio and X-ray Structure of the High-redshift Quasar PMN J0909+0354

Krisztina Perger, Sándor Frey, Daniel A. Schwartz +3

The high-redshift quasar PMN J0909+0354 () is known to have a pc-scale compact jet structure, based on global 5-GHz very long baseline interferometry (VLBI) observations p…

astro-ph.GA2021★ 59 cited

ATOMS:ALMA Three-millimeter Observations of Massive Star-forming regions -- III :Catalogues of candidate hot molecular cores and Hyper/Ultra compact HII regions

Hong-Li Liu, Tie Liu, Neal J. Evans +50

We have identified 453 compact dense cores in 3 mm continuum emission maps in the ATOMS (ALMA Three-millimeter Observations of Massive Star-forming regions) survey, and compiled th…

astro-ph.GA2021★ 36 cited

Homogeneous Analysis of Globular Clusters from the APOGEE Survey with the BACCHUS Code III. Cen

Szabolcs Mészáros, Thomas Masseron, José G. Fernández-Trincado +18

We study the multiple populations of Cen by using the abundances of Fe, C, N, O, Mg, Al, Si, K, Ca, and Ce from the high-resolution, high signal-to-noise (S/N70) spectra of…

astro-ph.GA2021★ 19 cited

The Rotation of Selected Globular Clusters and the Differential Rotation of M3 in Multiple Populations from the SDSS-IV APOGEE-2 Survey

László Szigeti, Szabolcs Mészáros, Gyula M. Szabó +3

In this paper, we analyze 10 globular clusters in order to measure their rotational properties by using high precision radial velocity data from the SDSS-IV APOGEE-2 survey. Out of…

astro-ph.GA2021★ 1 cited

Resonant Dynamical Friction in Nuclear Star Clusters: Rapid Alignment of an Intermediate-mass Black Hole with a Stellar Disk

Ákos Szölgyén, Gergely Máthé, Bence Kocsis

We investigate the dynamical evolution of an intermediate-mass black hole (IMBH) in a nuclear star cluster hosting a supermassive black hole (SMBH) and both a spherical and a flatt…

astro-ph.GA2021★ 6 cited

The effect of emission lines on the performance of photometric redshift estimation algorithms

Géza Csörnyei, László Dobos, István Csabai

We investigate the effect of strong emission line galaxies on the performance of empirical photometric redshift estimation methods. In order to artificially control the contributio…

astro-ph.GA2021★ 35 cited

The NANOGrav 11yr Data Set: Limits on Supermassive Black Hole Binaries in Galaxies within 500Mpc

Zaven Arzoumanian, Paul T. Baker, Adam Brazier +54

Supermassive black hole binaries (SMBHBs) should form frequently in galactic nuclei as a result of galaxy mergers. At sub-parsec separations, binaries become strong sources of low-…

astro-ph.GA2021★ 99 cited

Gaia Early Data Release 3: The Galactic anticentre

Gaia Collaboration, T. Antoja, P. McMillan +417

We aim to demonstrate the scientific potential of the Gaia Early Data Release 3 (EDR3) for the study of the Milky Way structure and evolution. We used astrometric positions, proper…