output
19962026
most citedPlanck 2013 results. XVI. Cosmological parameters

6.6k citations

Showing 2010 · astro-ph.GAShow all

25 papers · 2 filters

astro-ph.GA2010★ 70 cited

The 9.7 and 18 um silicate absorption profiles towards diffuse and molecular cloud lines-of-sight

J. M. van Breemen, M. Min, J. E. Chiar +8

Studying the composition of dust in the interstellar medium (ISM) is crucial in understanding the cycle of dust in our galaxy. The mid-infrared spectral signature of amorphous sili…

astro-ph.GA2010★ 9 cited

Carbon-Chain and Organic Molecules around Very Low-Luminosity Protostellar Objects of L1521F-IRS and IRAM 04191+1522

Shigehisa Takakuwa, Nagayoshi Ohashi, Yuri Aikawa

We have observed dense gas around the Very Low-Luminosity Ob jects (VeLLOs) L1521F-IRS and IRAM 04191+1522 in carbon-chain and organic molecular lines with the Nobeyama 45 m telesc…

astro-ph.GA2010★ 77 cited

UWISH2 -- The UKIRT Widefield Infrared Survey for H2

D., Froebrich, C. J. +56

We present the goals and preliminary results of an unbiased, near-infrared, narrow-band imaging survey of the First Galactic Quadrant (10deg<l<65deg ; -1.3deg<b<+1.3deg). This area…

astro-ph.GA2010★ 30 cited

Discovery of an expanding molecular bubble in Orion BN/KL

Luis A. Zapata, Laurent Loinard, Johannes Schmid-Burgk +3

During their infancy, stars are well known to expel matter violently in the form of well-defined, collimated outflows. A fairly unique exception is found in the Orion BN/KL star-fo…

astro-ph.GA2010★ 214 cited

1.3 mm Wavelength VLBI of Sagittarius A*: Detection of Time-Variable Emission on Event Horizon Scales

Vincent L. Fish, Sheperd S. Doeleman, Christopher Beaudoin +27

Sagittarius A*, the ~4 x 10^6 solar mass black hole candidate at the Galactic Center, can be studied on Schwarzschild radius scales with (sub)millimeter wavelength Very Long Baseli…

astro-ph.GA2010★ 18 cited

The magnetic field in the NGC 2024 FIR 5 dense core

Felipe de O. Alves, Josep M. Girart, Shih-Ping Lai +2

We used the Submillimeter Array (SMA) to observe the thermal polarized dust emission from the protostellar source NGC 2024 FIR 5. The polarized emission outlines a partial hourglas…

astro-ph.GA2010★ 54 cited

New Panoramic View of CO and 1.1 mm Continuum Emission in the Orion A Molecular Cloud. I. Survey Overview and Possible External Triggers of Star Formation

Yoshito Shimajiri, Ryohei Kawabe, Shigehisa Takakuwa +17

We present new, wide and deep images in the 1.1 mm continuum and the CO (=1-0) emission toward the northern part of the Orion A Giant Molecular Cloud (Orion-A GMC). The 1…

astro-ph.GA2010★ 15 cited

High-resolution mapping of the physical conditions in two nearby active galaxies based on 12CO(1-0), (2-1) and (3-2) lines

F. Boone, S. Garcia-Burillo, F. Combes +7

We present a detailed analysis of high resolution observations of the three lowest CO transitions in two nearby active galaxies, NGC4569 and NGC4826. The CO(1-0) and (2-1) lines we…

astro-ph.GA2010★ 35 cited

Extremely large and hot multilayer Keplerian disk around the O-type protostar W51N: The precursors of the HCHII regions?

Luis A. Zapata, Ya-Wen Tang, Silvia Leurini

We present sensitive high angular resolution (0.57-0.78) SO, SO, CO, CHOH, HCN, and HCOCHOH line observations at millimeter and submillimeter wavelength…

astro-ph.GA2010★ 32 cited

A Change of Rotation Profile in the Envelope in the HH 111 Protostellar System: A Transition to a Disk?

Chin-Fei Lee

The HH 111 protostellar system consists of two Class I sources (VLA 1 and 2) with putative disks deeply embedded in a flattened envelope at a distance of 400 pc. Here is a follow-u…

astro-ph.GA2010★ 15 cited

Stability of Magnetized Disks and Implications for Planet Formation

Susana Lizano, Daniele Galli, Mike J. Cai +1

This paper considers gravitational perturbations in geometrically thin disks with rotation curves dominated by a central object, but with substantial contributions from magnetic pr…

astro-ph.GA2010★ 50 cited

N2H+ depletion in the massive protostellar cluster AFGL 5142

Gemma Busquet, Robert Estalella, Qizhou Zhang +4

We aim at investigating with high angular resolution the NH3/N2H+ ratio toward the high-mass star-forming region AFGL 5142 in order to study whether this ratio behaves similarly to…

astro-ph.GA2010★ 49 cited

Young starless cores embedded in the magnetically dominated Pipe Nebula

Pau Frau, Josep Miquel Girart, Maria T. Beltran +7

The Pipe Nebula is a massive, nearby dark molecular cloud with a low star-formation efficiency which makes it a good laboratory to study the very early stages of the star formation…

astro-ph.GA2010★ 39 cited

The Chemical Evolution of the Monoceros Ring/Galactic Anticenter Stellar Structure

Mei-Yin Chou, Steven R. Majewski, Katia Cunha +3

The origin of the Galactic Anticenter Stellar Structure (GASS) or "Monoceros ring" --- a low latitude overdensity at the edge of the Galactic disk spanning at least the second and…

astro-ph.GA2010★ 58 cited

The NH2D/NH3 ratio toward pre-protostellar cores around the UCHII region in IRAS 20293+3952

G. Busquet, Aina Palau, R. Estalella +5

The deuterium fractionation, Dfrac, has been proposed as an evolutionary indicator in pre-protostellar and protostellar cores of low-mass star-forming regions. We investigate Dfrac…

astro-ph.GA2010★ 66 cited

High-Angular Resolution Dust Polarization Measurements: Shaped B-field Lines in the Massive Star Forming Region Orion BN/KL

Ya-Wen Tang, Paul T. P. Ho, Patrick M. Koch +1

We present observational results of the thermal dust continuum emission and its linear polarization in one of the nearest massive star-forming sites Orion BN/KL in Orion Molecular…

astro-ph.GA2010★ 26 cited

Shattering by turbulence as a production source of very small grains

Hiroyuki Hirashita

The origin of grain size distribution in the interstellar medium is one of the most fundamental problems in the interstellar physics. In the Milky Way, smaller grains are more abun…

astro-ph.GA2010★ 4 cited

Search for the Sunyaev-Zel'dovich Effect in a Giant Radio Galaxy B1358+305

Masako YAMADA, Y. Fujita, H. Matsuo +1

We present results of an imaging observation of the central region of a giant radio galaxy B1358+305. The classical, standard scenario of Fanaroff-Riley II radio galaxies suggests…

astro-ph.GA2010★ 114 cited

From the Convergence of Filaments to Disk-Outflow Accretion: Massive-Star Formation in W33A

Roberto Galván-Madrid, Qizhou Zhang, Eric Keto +5

Interferometric observations of the W33A massive star-formation region, performed with the Submillimeter Array (SMA) and the Very Large Array (VLA) at resolutions from 5 arcsec (0.…

astro-ph.GA2010★ 69 cited

The reflection-symmetric wiggle of the young protostellar jet HH 211

Chin-Fei Lee, Tatsuhiko I. Hasegawa, Naomi Hirano +4

HH 211 is a highly collimated jet originating from a nearby young Class 0 protostar. Here is a follow-up study of the jet with our previous observations at unprecedented resolution…

astro-ph.GA2010★ 11 cited

The Rare 23.1-GHz Methanol Masers in NGC 7538 IRS 1

Roberto Galván-Madrid, Gabriela Montes, Edgar A. Ramírez +3

We present high angular resolution (FWHM_beam < 0.2") observations of the 23.1-GHz methanol (CH_3OH) transition toward the massive-star forming region NGC 7538 IRS 1. The two veloc…

astro-ph.GA2010★ 47 cited

Large-scale distributions of mid- and far-infrared emission from the center to the halo of M82 revealed with AKARI

H. Kaneda, D. Ishihara, T. Suzuki +6

The edge-on starburst galaxy M82 exhibits complicated distributions of gaseous materials in its halo, which include ionized superwinds driven by nuclear starbursts, neutral materia…

astro-ph.GA2010★ 15 cited

Outflow - Core Interaction in Barnard 1

Masaaki Hiramatsu, Naomi Hirano, Shigehisa Takakuwa

In order to study how outflows from protostars influence the physical and chemical conditions of the parent molecular cloud, we have observed Barnard 1 (B1) main core, which harbor…

astro-ph.GA2010★ 6 cited

High Resolution Observations of Dust Continuum Emission at 340 GHz from the Low-mass T Tauri Star FN Tauri

Munetake Momose, Nagayoshi Ohashi, Tomoyuki Kudo +2

FN Tau is a rare example of very low-mass T Tauri stars that exhibits a spatially resolved nebulosity in near-infrared scattering light. To directly derive the parameters of a circ…