output
19912026
Showing 2020 · astro-ph.GAShow all

20 papers · 2 filters

astro-ph.GA2020★ 8 cited

Green Bank Telescope Observations of : Planetary Nebulae

T. M. Bania, Dana S. Balser

We use the Green Bank Telescope to search for emission from a sample of four Galactic planetary nebulae: NGC 3242, NGC 6543, NGC 6826, and NGC 7009. During the era of prim…

astro-ph.GA2020★ 10 cited

The magnetic field in the dense photodissociation region of DR 21

Atanu Koley, Nirupam Roy, Karl M. Menten +3

Measuring interstellar magnetic fields is extremely important for understanding their role in different evolutionary stages of interstellar clouds and of star formation. However, d…

astro-ph.GA2020★ 15 cited

The High-Redshift Clusters Occupied by Bent Radio AGN (COBRA) Survey: Radio Source Properties

Emmet Golden-Marx, Elizabeth Blanton, Rachel-Paterno-Mahler +8

The shape of bent, double-lobed radio sources requires a dense gaseous medium. Bent sources can therefore be used to identify galaxy clusters and characterize their evolutionary hi…

astro-ph.GA2020★ 24 cited

Probing Interstellar Grain Growth Through Polarimetry in the Taurus Cloud Complex

John E. Vaillancourt, B-G Andersson, Dan P. Clemens +4

The optical and near-infrared (OIR) polarization of starlight is typically understood to arise from the dichroic extinction of that light by dust grains whose axes are aligned with…

astro-ph.GA2020★ 60 cited

Preliminary Target Selection for the DESI Milky Way Survey (MWS)

Carlos Allende Prieto, Andrew P. Cooper, Arjun Dey +31

The DESI Milky Way Survey (MWS) will observe 8 million stars between mag, supplemented by observations of brighter targets under poor observing conditions. The s…

astro-ph.GA2020★ 72 cited

Preliminary Target Selection for the DESI Bright Galaxy Survey (BGS)

Omar Ruiz-Macias, Pauline Zarrouk, Shaun Cole +28

The Dark Energy Spectroscopic Instrument (DESI) will execute a nearly magnitude-limited survey of low redshift galaxies (, median ). Clustering…

astro-ph.GA2020★ 37 cited

Survey of ortho-HD in high-mass star-forming regions

G. Sabatini, S. Bovino, A. Giannetti +7

(Abridged) We present a large sample of o-HD observations in high-mass star-forming regions and discuss possible empirical correlations with relevant physical quantities to…

astro-ph.GA2020★ 9 cited

ATLASGAL-selected massive clumps in the inner Galaxy: VIII. Chemistry of photodissociation regions

W. -J. Kim, F. Wyrowski, J. S. Urquhart +4

We study ten molecular transitions obtained from an unbiased 3 mm molecular line survey using the IRAM 30 m telescope toward 409 compact dust clumps identified by the APEX Telescop…

astro-ph.GA2020★ 89 cited

Magnetized filamentary gas flows feeding the young embedded cluster in Serpens South

Thushara G. S. Pillai, Dan P. Clemens, Stefan Reissl +11

Observations indicate that molecular clouds are strongly magnetized, and that magnetic fields influence the formation of stars. A key observation supporting the conclusion that mol…

astro-ph.GA2020★ 29 cited

The chemical structure of young high-mass star-forming clumps: (II) parsec-scale CO depletion and deuterium fraction of

S. Feng, D. Li, P. Caselli +19

The physical and chemical properties of cold and dense molecular clouds are key to understanding how stars form. Using the IRAM 30 m and NRO 45 m telescopes, we carried out a Multi…

astro-ph.GA2020★ 2 cited

Characterizing [C II] Line Emission In Massive Star Forming Clumps

James M. Jackson, David Allingham, Nicholas Killerby-Smith +7

Because the 157.74 micron [C II] line is the dominant coolant of star-forming regions, it is often used to infer the global star-formation rates of galaxies. By characterizing the…

astro-ph.GA2020★ 27 cited

Sulphur and carbon isotopes towards Galactic centre clouds

P. K. Humire, V. Thiel, C. Henkel +9

Measuring isotopic ratios is a sensitive technique used to obtain information on stellar nucleosynthesis and chemical evolution. We present measurements of the carbon and sulphur a…

astro-ph.GA2020★ 7 cited

Extended radio AGN at z ~ 1 in the ORELSE survey: The confining effect of dense environments

Lu Shen, Guilin Liu, Mengfei Zhang +16

Recent hydrodynamic simulations and observations of radio jets have shown that the surrounding environment has a large effect on their resulting morphology. To investigate this we…

astro-ph.GA2020★ 27 cited

CMZoom II: Catalog of Compact Submillimeter Dust Continuum Sources in the Milky Way's Central Molecular Zone

H Perry Hatchfield, Cara Battersby, Eric Keto +19

In this paper we present the CMZoom Survey's catalog of compact sources (< 10'', ~0.4pc) within the Central Molecular Zone (CMZ). CMZoom is a Submillimeter Array (SMA) large progra…

astro-ph.GA2020★ 58 cited

CMZoom: Survey Overview and First Data Release

Cara Battersby, Eric Keto, Daniel Walker +19

We present an overview of the CMZoom survey and its first data release. CMZoom is the first blind, high-resolution survey of the Central Molecular Zone (CMZ; the inner 500 pc of th…

astro-ph.GA2020★ 23 cited

Lopsided Satellite Distributions around Isolated Host Galaxies

Tereasa G. Brainerd, Adam Samuels

We investigate the spatial distribution of the satellites of bright, isolated host galaxies. In agreement with previous studies, we find that, on average, the satellites of red hos…

astro-ph.GA2020★ 24 cited

The Galactic Plane Infrared Polarization Survey (GPIPS): Data Release 4

Dan P. Clemens, L. R. Cashman, C. Cerny +7

The Galactic Plane Infrared Polarization Survey (GPIPS) seeks to characterize the magnetic field in the dusty Galactic disk using near-infrared stellar polarimetry. All GPIPS obser…

astro-ph.GA2020★ 11 cited

Probing the initial conditions of high-mass star formation -- IV. Gas dynamics and NHD chemistry in high-mass precluster and protocluster clumps

Chuan-Peng Zhang, Guang-Xing Li, Thushara Pillai +4

The initial stage of star formation is a complex area study because of its high density and low temperature. Under such conditions, many molecules become depleted from the gas phas…

astro-ph.GA2020★ 40 cited

Magnetic fields in the early stages of massive star formation as revealed by ALMA

Junhao Liu, Qizhou Zhang, Keping Qiu +5

We present 1.3 mm ALMA dust polarization observations at a resolution of 0.02 pc of three massive molecular clumps, MM1, MM4, and MM9, in the infrared dark cloud G28.34+0.06.…

astro-ph.GA2020★ 16 cited

Modeling the Infrared Reverberation Response of the Circumnuclear Dusty Torus in AGNs: An Investigation of Torus Response Functions

Triana Almeyda, Andrew Robinson, Michael Richmond +2

The size and structure of the dusty circumnuclear torus in active galactic nuclei (AGN) can be investigated by analyzing the temporal response of the torus's infrared (IR) dust emi…