output
19952026
most citedGaia Data Release 2. Summary of the contents and survey properties

8.6k citations

Showing 2013 · astro-ph.GAShow all

22 papers · 2 filters

astro-ph.GA2013★ 133 cited

Rotationally-supported disks around Class I sources in Taurus: disk formation constraints

Daniel Harsono, Jes K. Jorgensen, Ewine F. van Dishoeck +4

(Abridged) Disks are observed around pre-main sequence stars, but how and when they form is still heavily debated. While disks around young stellar objects have been identified thr…

astro-ph.GA2013★ 15 cited

Near-infrared counterparts to the Galactic Bulge Survey X-ray source population

S. Greiss, D. Steeghs, P. G. Jonker +6

We report on the near-infrared matches, drawn from three surveys, to the 1640 unique X-ray sources detected by Chandra in the Galactic Bulge Survey (GBS). This survey targets faint…

astro-ph.GA2013★ 33 cited

CO ro-vibrational lines in HD100546: A search for disc asymmetries and the role of fluorescence

R. P. Hein Bertelsen, I. Kamp, M. Goto +5

We have studied the emission of CO ro-vibrational lines in the disc around the Herbig Be star HD100546 with the final goal of using these lines as a diagnostic to understand inner…

astro-ph.GA2013★ 50 cited

Spatially extended OH+ emission from the Orion Bar and Ridge

Floris van der Tak, Zsofia Nagy, Volker Ossenkopf +5

We report the first detection of a Galactic source of OH+ line emission: the Orion Bar, a bright nearby photon-dominated region. Line emission is detected over ~1' (0.12 pc), traci…

astro-ph.GA2013★ 225 cited

A Keplerian disk around a Class 0 source: ALMA observations of VLA1623A

Nadia M. Murillo, Shih-Ping Lai, Simon Bruderer +2

Context: Rotationally supported disks are critical in the star formation process. The questions of when do they form and what factors influence or hinder their formation have been…

astro-ph.GA2013★ 13 cited

Water and Methanol Maser Survey of Protostars in the Orion Molecular Cloud Complex

Miju Kang, Jeong-Eun Lee, Minho Choi +4

The results of a maser survey toward ninety-nine protostars in the Orion molecular cloud complex are presented. The target sources are low-mass protostars identified from infrared…

astro-ph.GA2013★ 56 cited

VLA and CARMA Observations of Protostars in the Cepheus Clouds: Sub-arcsecond Proto-Binaries Formed via Disk Fragmentation

John J. Tobin, Claire J. Chandler, David J. Wilner +8

We present observations of three Class 0/I protostars (L1157-mm, CB230 IRS1, and L1165-SMM1) using the Karl G. Jansky Very Large Array (VLA) and observations of two (L1165-SMM1 and…

astro-ph.GA2013★ 48 cited

Deuterated water in the solar-type protostars NGC 1333 IRAS 4A and IRAS 4B

A. Coutens, C. Vastel, S. Cabrit +19

Aims. The aim of this paper is to study deuterated water in the solar-type protostars NGC1333 IRAS4A and IRAS4B, to compare their HDO abundance distribution with other star-forming…

astro-ph.GA2013★ 26 cited

Dense molecular cocoons in the massive protocluster W3 IRS5: a test case for models of massive star formation

K. -S. Wang, T. L. Bourke, M. R. Hogerheijde +4

[Context] Two competing models describe the formation of massive stars in objects like the Orion Trapezium. In the turbulent core accretion model, the resulting stellar masses are…

astro-ph.GA2013★ 102 cited

Studying Galactic interstellar turbulence through fluctuations in synchrotron emission: First LOFAR Galactic foreground detection

M. Iacobelli, M. Haverkorn, E. Orrú +85

The characteristic outer scale of turbulence and the ratio of the random to ordered components of the magnetic field are key parameters to characterise magnetic turbulence in the i…

astro-ph.GA2013★ 42 cited

The Spatial Distribution of Organics toward the High-Mass YSO NGC 7538 IRS9

Karin I. Oberg, Mavis Dufie Boamah, Edith C. Fayolle +3

Based on astrochemical theory, the complex molecular composition around high-mass YSOs should evolve from the outer envelope in toward the central hot region as a sequence of tempe…

astro-ph.GA2013★ 106 cited

Alignment Between Flattened Protostellar Infall Envelopes and Ambient Magnetic Fields

Nicholas L. Chapman, Jacqueline A. Davidson, Paul F. Goldsmith +10

We present 350 micron polarization observations of four low-mass cores containing Class 0 protostars: L483, L1157, L1448-IRS2, and Serp-FIR1. This is the second paper in a larger s…

astro-ph.GA2013★ 135 cited

The outburst decay of the low magnetic field magnetar SGR 0418+5729

N. Rea, G. L. Israel, J. A. Pons +20

We report on the long term X-ray monitoring of the outburst decay of the low magnetic field magnetar SGR 0418+5729, using all the available X-ray data obtained with RXTE, SWIFT, Ch…

astro-ph.GA2013★ 76 cited

Water in star-forming regions with Herschel (WISH). IV. A survey of low-J H2O line profiles toward high-mass protostars

Floris van der Tak, Luis Chavarria, Fabrice Herpin +4

To understand the origin of water line emission and absorption during high-mass star formation, we decompose high-resolution Herschel-HIFI line spectra toward 19 high-mass star-for…

astro-ph.GA2013★ 126 cited

A candidate circumbinary Keplerian disk in G35.20-0.74 N: A study with ALMA

A. Sanchez-Monge, R. Cesaroni, M. T. Beltran +13

We report on ALMA observations of continuum and molecular line emission with 0.4" resolution towards the high-mass star forming region G35.20-0.74 N. Two dense cores are detected i…

astro-ph.GA2013★ 12 cited

The HIFI spectral survey of AFGL2591 (CHESS). I. Highly excited linear rotor molecules in the high-mass protostellar envelope

M. H. D. van der Wiel, L. Pagani, F. F. S. van der Tak +2

We aim to reveal the gas energetics in the circumstellar environment of the prototypical high-mass protostellar object AFGL2591 using space-based far-infrared observations of linea…

astro-ph.GA2013★ 44 cited

Probing the role of polycyclic aromatic hydrocarbons in the photoelectric heating within photodissociation regions

Yoko Okada, Paolo Pilleri, Olivier Berné +8

We observationally investigate the relation between the photoelectric heating efficiency in PDRs and the charge of PAHs, which are considered to play a key role in photoelectric he…

astro-ph.GA2013★ 96 cited

A Black Hole Nova Obscured by an Inner Disk Torus

J. M. Corral-Santana, J. Casares, T. Muñoz-Darias +5

Stellar-mass black holes (BHs) are mostly found in X-ray transients, a subclass of X-ray binaries that exhibit violent outbursts. None of the 50 Galactic BHs known show eclipses, w…

astro-ph.GA2013★ 20 cited

LOFAR detections of low-frequency radio recombination lines towards Cassiopeia A

Ashish Asgekar, J. B. R. Oonk, S. Yatawatta +89

Cassiopeia A was observed using the Low-Band Antennas of the LOw Frequency ARray (LOFAR) with high spectral resolution. This allowed a search for radio recombination lines (RRLs) a…

astro-ph.GA2013★ 47 cited

Herschel-HIFI observations of high-J CO and isotopologues in star-forming regions: from low- to high-mass

I. San Jose-Garcia, J. C. Mottram, L. E. Kristensen +9

Context; Our understanding of the star formation process has traditionally been confined to certain mass or luminosity boundaries because most studies focus only on low-, intermedi…

astro-ph.GA2013★ 109 cited

The chemistry of ions in the Orion Bar I. - CH+, SH+, and CF+: The effect of high electron density and vibrationally excited H2 in a warm PDR surface

Z. Nagy, F. F. S. Van der Tak, V. Ossenkopf +8

The abundances of interstellar CH+ and SH+ are not well understood as their most likely formation channels are highly endothermic. Using data from Herschel, we study the formation…

astro-ph.GA2013★ 110 cited

ISM composition through X-ray spectroscopy of LMXBs

C. Pinto, J. S. Kaastra, E. Costantini +1

The diffuse interstellar medium (ISM) is an integral part of the evolution of the entire Galaxy. Metals are produced by stars and their abundances are the direct testimony of the h…