Showing 2015 · astro-ph.GAShow all

17 papers · 2 filters

astro-ph.GA2015★ 34 cited

Planck cold clumps in the Orionis complex: I. Discovery of an extremely young Class 0 protostellar object and a proto-brown dwarf candidate in a bright rimmed clump PGCC G192.32-11.88

Tie Liu, Qizhou Zhang, Kee-Tae Kim +37

We are performing a series of observations with ground-based telescopes toward Planck Galactic cold clumps (PGCCs) in the Orionis complex in order to systematically investigate…

astro-ph.GA2015★ 22 cited

Unusual shock-excited OH maser emission in a young Planetary Nebula

Hai-Hua Qiao, Andrew J. Walsh, Jose F. Gomez +9

We report on OH maser emission toward G336.644-0.695 (IRAS 16333-4807), which is a H2O maser-emitting Planetary Nebula (PN). We have detected 1612, 1667 and 1720 MHz OH masers at t…

astro-ph.GA2015★ 47 cited

The Carina Nebula and Gum 31 molecular complex: I. Molecular gas distribution, column densities and dust temperatures

David Rebolledo, Michael Burton, Anne Green +6

We report high resolution observations of the CO and CO molecular lines in the Carina Nebula and the Gum 31 region obtained with the…

astro-ph.GA2015★ 37 cited

High-mass star-forming cloud G0.38+0.04 in the Galactic Center Dust Ridge contains H2CO and SiO masers

Adam Ginsburg, Andrew Walsh, Christian Henkel +15

We have discovered a new HCO (formaldehyde) 4.82966 GHz maser in Galactic Center Cloud C, G0.38+0.04. At the time of acceptance, this is the eighth region con…

astro-ph.GA2015★ 21 cited

A view of Large Magellanic Cloud HII regions N159, N132, and N166 through the 345 GHz window

S. Paron, M. E. Ortega, C. Fariña +3

We present results obtained towards the HII regions N159, N166, and N132 from the emission of several molecular lines in the 345 GHz window. Using ASTE we mapped a 2.4' 2.…

astro-ph.GA2015★ 12 cited

Infall, outflow, and turbulence in massive star-forming cores in the G333 giant molecular cloud

N. Lo, B. Wiles, M. P. Redman +5

We present molecular line imaging observations of three massive molecular outflow sources, G333.6-0.2, G333.1-0.4, and G332.8-0.5, all of which also show evidence for infall, withi…

astro-ph.GA2015★ 77 cited

Understanding star formation in molecular clouds III. Probability distribution functions of molecular lines in Cygnus X

N. Schneider, S. Bontemps, F. Motte +11

Column density (N) PDFs serve as a powerful tool to characterize the physical processes that influence the structure of molecular clouds. Star-forming clouds can best be characteri…

astro-ph.GA2015★ 26 cited

Extended Carbon Line Emission in the Galaxy: Searching for Dark Molecular Gas along the G328 Sightline

Michael G. Burton, Michael C. B. Ashley, Catherine Braiding +6

We present spectral data cubes of the [CI] 809GHz, 12CO 115GHz, 13CO 110GHz and HI 1.4GHz line emission from an 1 square degree region along the l = 328° (G328) sightline in the Ga…

astro-ph.GA2015★ 103 cited

The Three-mm Ultimate Mopra Milky Way Survey. I. Survey Overview, Initial Data Releases, and First Results

Peter J. Barnes, Erik Muller, Balthasar Indermuehle +5

We describe a new mm-wave molecular-line mapping survey of the southern Galactic Plane and its first data releases. The Three-mm Ultimate Mopra Milky Way Survey (ThrUMMS) maps a 60…

astro-ph.GA2015★ 34 cited

Scaling relations of the properties for CO resolved structures in nearby spiral galaxies

David Rebolledo, Tony Wong, Rui Xue +3

We report high spatial resolution observations of Giant Molecular Clouds (GMCs) in the nearby spiral galaxies NGC 6946, M101 and NGC 628 obtained with the CARMA telescope. We obser…

astro-ph.GA2015★ 20 cited

Selecting Sagittarius: Identification and Chemical Characterization of the Sagittarius Stream

E. A. Hyde, S. Keller, D. B. Zucker +11

Wrapping around the Milky Way, the Sagittarius stream is the dominant substructure in the halo. Our statistical selection method has allowed us to identify 106 highly likely member…

astro-ph.GA2015★ 33 cited

The Mopra Southern Galactic Plane CO Survey - Data Release 1

Catherine Braiding, Michael G. Burton, Rebecca Blackwell +13

We present observations of the first ten degrees of longitude in the Mopra carbon monoxide (CO) survey of the southern Galactic plane (Burton et al. 2013), covering Galactic longit…

astro-ph.GA2015★ 26 cited

The Three-mm Ultimate Mopra Milky Way Survey. II. Cloud and Star Formation Near the Filamentary Ministarburst RCW 106

Hans Nguyen, Quang Nguyen Luong, Peter G. Martin +9

We report here a study of gas, dust and star formation rates (SFRs) in the molecular cloud complexes (MCCs) surrounding the giant H region RCW106 using…

astro-ph.GA2015★ 839 cited

The GALAH Survey: Scientific Motivation

G. M. De Silva, K. C. Freeman, J. Bland-Hawthorn +44

The GALAH survey is a large high-resolution spectroscopic survey using the newly commissioned HERMES spectrograph on the Anglo-Australian Telescope. The HERMES spectrograph provide…

astro-ph.GA2015★ 413 cited

Abundances, Stellar Parameters, and Spectra From the SDSS-III/APOGEE Survey

Jon A. Holtzman, Matthew Shetrone, Jennifer A. Johnson +39

The SDSS-III/APOGEE survey operated from 2011-2014 using the APOGEE spectrograph, which collects high-resolution (R~22,500), near-IR (1.51-1.70 microns) spectra with a multiplexing…

astro-ph.GA2015★ 100 cited

The Next Generation Virgo Cluster Survey. VI. The Kinematics of Ultra-compact Dwarfs and Globular Clusters in M87

Hong-Xin Zhang, Eric W. Peng, Patrick Cote +19

The origin of ultra-compact dwarfs (UCDs)--objects larger and more massive than typical globular clusters (GCs), but more compact than typical dwarf galaxies--has been hotly debate…

astro-ph.GA2015★ 60 cited

Mopra CO Observations of the Bubble HII Region RCW120

L. D. Anderson, L. Deharveng, A. Zavagno +6

We use the Mopra radio telescope to test for expansion of the molecular gas associated with the bubble HII region RCW120. A ring, or bubble, morphology is common for Galactic HII r…