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Showing 2017Show all

594 papers · 1 filter

astro-ph.GA2017★ 32 cited

Herschel and SCUBA-2 observations of dust emission in a sample of Planck cold clumps

Mika Juvela, Jinhua He, Katherine Pattle +26

Analysis of all-sky Planck submillimetre observations and the IRAS 100um data has led to the detection of a population of Galactic cold clumps. The clumps can be used to study star…

astro-ph.SR2017★ 36 cited

Accretion signatures in the X-shooter spectrum of the substellar companion to SR12

Alejandro Santamaría-Miranda, Claudio Cáceres, Matthias R. Schreiber +5

About a dozen substellar companions orbiting young stellar objects or pre-main sequence stars at several hundred au have been identified in the last decade. These objects are inter…

quant-ph2017★ 11 cited

Path Integral and Spectral Representations for Supersymmetric Dirac-Hamiltonians

Georg Junker, Akira Inomata

The resolvent of supersymmetric Dirac Hamiltonian is studied in detail. Due to supersymmetry the squared Dirac Hamiltonian becomes block-diagonal whose elements are in essence non-…

astro-ph.SR2017★ 16 cited

The Belgian repository of fundamental atomic data and stellar spectra (BRASS). I. Cross-matching atomic databases of astrophysical interest

Mike Laverick, Alex Lobel, Thibault Merle +5

Fundamental atomic parameters, such as oscillator strengths, play a key role in modelling and understanding the chemical composition of stars in the universe. Despite the significa…

astro-ph.IM2017★ 85 cited

SEPIA - a new single pixel receiver at the APEX Telescope

V. Belitsky, I. Lapkin, M. Fredrixon +31

Context: We describe the new SEPIA (Swedish-ESO PI Instrument for APEX) receiver, which was designed and built by the Group for Advanced Receiver Development (GARD), at Onsala Spac…

astro-ph.GA2017★ 13 cited

The ESO's VLT Type Ia supernova spectral set of the final two years of SNLS

C. Balland, F. Cellier-Holzem, C. Lidman +24

We aim to present 70 spectra of 68 new high-redshift type Ia supernovae (SNeIa) measured at ESO's VLT during the final two years of operation (2006-2008) of the Supernova Legacy Su…

astro-ph.GA2017★ 16 cited

The second Herschel-ATLAS Data Release - III: optical and near-infrared counterparts in the North Galactic Plane field

Cristina Furlanetto, S. Dye, N. Bourne +8

This paper forms part of the second major public data release of the Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS). In this work, we describe the identification of o…

astro-ph.GA2017★ 79 cited

Phosphorus-bearing molecules in the Galactic Center

V. M. Rivilla, I. Jiménez-Serra, S. Zeng +10

Phosphorus (P) is one of the essential elements for life due to its central role in biochemical processes. Recent searches have shown that P-bearing molecules (in particular PN and…

astro-ph.GA2017★ 69 cited

The TOP-SCOPE survey of Planck Galactic Cold Clumps: Survey overview and results of an exemplar source, PGCC G26.53+0.17

Tie Liu, Kee-Tae Kim, Mika Juvela +11

The low dust temperatures (<14 K) of Planck Galactic Cold Clumps (PGCCs) make them ideal targets to probe the initial conditions and very early phase of star formation. TOP-SCOPE i…

astro-ph.EP2017★ 124 cited

Spectroscopy and thermal modelling of the first interstellar object 1I/2017 U1 'Oumuamua

Alan Fitzsimmons, Colin Snodgrass, Ben Rozitis +7

During the formation and evolution of the Solar System, significant numbers of cometary and asteroidal bodies were ejected into interstellar space. It can be reasonably exp…

astro-ph.SR2017★ 92 cited

The lithium-rotation connection in the 125 Myr-old Pleiades cluster

J. Bouvier, D. Barrado, E. Moraux +9

The evolution of lithium abundance over a star's lifetime is indicative of transport processes operating in the stellar interior. We revisit the relationship between lithium conten…

astro-ph.GA2017★ 12 cited

A search for pre- and proto-brown dwarfs in the dark cloud Barnard 30 with ALMA

N. Huélamo, I. de Gregorio-Monsalvo, A. Palau +8

In this work we present ALMA continuum observations at 880 m of 30 sub-mm cores previously identified with APEX/LABOCA at 870m in the Barnard 30 cloud. The main goal is to ch…

astro-ph.SR2017★ 9 cited

Early phases in the stellar and substellar formation and evolution: Infrared and submillimeter data in the Barnard 30 dark cloud

D. Barrado, I. de Gregorio-Monsalvo, N. Huélamo +10

The early evolutionary stage of brown dwarfs are not very well characterized, specially during the embedded phase. To gain insight into the dominant formation mechanism of very low…

astro-ph.GA2017★ 75 cited

Fast, Collimated Outflow in the Western Nucleus of Arp 220

Loreto Barcos-Muñoz, Susanne Aalto, Todd A. Thompson +6

We present the first spatially and spectrally resolved image of the molecular outflow in the western nucleus of Arp\,220. The outflow, seen in HCN~(1--0) by ALMA, is compact and co…

astro-ph.GA2017★ 103 cited

A Model for the Onset of Self-gravitation and Star Formation in Molecular Gas Governed by Galactic Forces: I. Cloud-scale Gas Motions

Sharon E. Meidt, Adam K. Leroy, Erik Rosolowsky +10

Modern extragalactic molecular gas surveys now reach the scales of star-forming giant molecular clouds (GMCs, 20-50 pc). Systematic variations in GMC properties with galaxy environ…

astro-ph.GA2017★ 15 cited

Abundance ratios in dwarf elliptical galaxies

Ş. Şen, R. F. Peletier, A. Boselli +14

We determine abundance ratios of 37 dwarf ellipticals (dEs) in the nearby Virgo cluster. This sample is representative of the early-type population of galaxies in the absolute magn…

astro-ph.SR2017★ 2 cited

Detection of a centrifugal magnetosphere in one of the most massive stars in the Oph star-forming cloud

S. Hubrig, M. Schöller, S. P. Järvinen +3

Recent XMM-Newton observations of the B2 type star rho Oph A indicated a periodicity of 1.205d, which was ascribed to rotational modulation. Since variability of X-ray emission in…

astro-ph.EP2017★ 64 cited

The CARMENES search for exoplanets around M dwarfs - HD 147379b: A nearby Neptune in the temperate zone of an early-M dwarf

A. Reiners, I. Ribas, M. Zechmeister +169

We report on the first star discovered to host a planet detected by radial velocity (RV) observations obtained within the CARMENES survey for exoplanets around M dwarfs. HD 147379…

astro-ph.CO2017★ 30 cited

Thermodynamic Profiles of Galaxy Clusters from a Joint X-ray/SZ Analysis

Jennifer A. Shitanishi, Elena Pierpaoli, Jack Sayers +6

We jointly analyze Bolocam Sunyaev-Zeldovich (SZ) effect and Chandra X-ray data for a set of 45 clusters to derive gas density and temperature profiles without using spectroscopic…

astro-ph.GA2017★ 60 cited

The Herschel-ATLAS Data Release 2, Paper I. Submillimeter and Far-infrared Images of the South and North Galactic Poles: The Largest Herschel Survey of the Extragalactic Sky

Matthew W. L. Smith, Edo Ibar, Steve J. Maddox +11

We present the largest submillimeter images that have been made of the extragalactic sky. The Herschel Astrophysical Terahertz Large Area Survey (H-ATLAS) is a survey of 660 deg$^2…

astro-ph.GA2017★ 10 cited

VALES: IV. Exploring the transition of star formation efficiencies between normal and starburst galaxies using APEX/SEPIA Band-5 and ALMA at low redshift

C. Cheng, E. Ibar, T. M. Hughes +12

In this work we present new APEX/SEPIA Band-5 observations targeting the CO () emission line of 24 Herschel-detected galaxies at . Combining this sample {w…

astro-ph.SR2017★ 34 cited

HD 156324: a tidally locked magnetic triple spectroscopic binary with a disrupted magnetosphere

M. Shultz, Th. Rivinius, G. A. Wade +3

HD 156324 is an SB3 (B2V/B5V/B5V) system in the Sco OB4 association. The He-strong primary possesses both a strong magnetic field, and H emission believed to originate in its Ce…

astro-ph.HE2017★ 33 cited

SNe 2013K and 2013am: observed and physical properties of two slow, normal Type IIP events

L. Tomasella, E. Cappellaro, M. L. Pumo +28

We present one year of optical and near-infrared photometry and spectroscopy of the Type IIP SNe 2013K and 2013am. Both objects are affected by significant extinction, due to their…

astro-ph.HE2017★ 46 cited

ALMA Twenty-six arcmin Survey of GOODS-S at One-millimeter (ASAGAO): X-ray AGN Properties of Millimeter-Selected Galaxies

Y. Ueda, B. Hatsukade, K. Kohno +33

We investigate the X-ray active galactic nucleus (AGN) properties of millimeter galaxies in the Great Observatories Origins Deep Survey South (GOODS-S) field detected with the Atac…