作者:J. Klee , T. F. Illenseer , M. Jung ... |
来源:[J].Astronomy & Astrophysics(IF 5.084), 2019, Vol.632EDP Sciences |
摘要:Aims. Our goal is to find a converged cooling limit for fragmentation in self-gravitating disks. This is especially interesting for the formation of planets, brown dwarfs, or stars, and the growth of black holes. While investigating the limit, we want to give a clear criteri... |
作者:Y. Stein , R.-J. Dettmar , M. Weżgowiec ... |
来源:[J].Astronomy & Astrophysics(IF 5.084), 2019, Vol.632EDP Sciences |
摘要:Context. The radio continuum halos of edge-on spiral galaxies have diverse morphologies, with different magnetic field properties and cosmic ray (CR) transport processes into the halo. Aims. Using the Continuum HAloes in Nearby Galaxies – an EVLA Survey (CHANG-ES) radio cont... |
作者:T. Putaud , X. Michaut , F. Le Petit ... |
来源:[J].Astronomy & Astrophysics(IF 5.084), 2019, Vol.632EDP Sciences |
摘要:Context. The ortho-to-para ratio (OPR) of water in the interstellar medium (ISM) is often assumed to be related to the formation temperature of water molecules, making it a potentially interesting tracer of the thermal history of interstellar gas. Aims. A very low OPR of 0.1... |
作者:G. B. Caminha , P. Rosati , C. Grillo ... |
来源:[J].Astronomy & Astrophysics(IF 5.084), 2019, Vol.632EDP Sciences |
摘要:We carried out a detailed strong lensing analysis of a sub-sample of eight galaxy clusters of the Cluster Lensing And Supernova survey with Hubble (CLASH) in the redshift range of z cluster = [0.23 − 0.59] using extensive spectroscopic information, primarily from ... |
作者:M. K. McClure |
来源:[J].Astronomy & Astrophysics(IF 5.084), 2019, Vol.632EDP Sciences |
摘要:Context. The carbon content of protoplanetary disks is an important parameter to characterize planets formed at different disk radii. There is some evidence from far-infrared and submillimeter observations that gas in the outer disk is depleted in carbon, with a correspondin... |
作者:Guillaume Dubus , Chris Done , Bailey E. Tetarenko ... |
来源:[J].Astronomy & Astrophysics(IF 5.084), 2019, Vol.632EDP Sciences |
摘要:Context. The observed signatures of winds from X-ray binaries are broadly consistent with thermal winds, which are driven by X-ray irradiation of the outer accretion disc. Thermal winds produce mass outflow rates that can exceed the accretion rate in the disc. Aims. We aim t... |
作者:H. Andrews , D. Fenech , R. K. Prinja ... |
来源:[J].Astronomy & Astrophysics(IF 5.084), 2019, Vol.632EDP Sciences |
摘要:Context. Massive stars and their stellar winds are important for a number of feedback processes. The mass lost in the stellar wind can help determine the end-point of the star as a neutron star (NS) or a black hole (BH). However, the impact of mass loss on the post-main sequence ... |
作者:D. Mesa , M. Keppler , F. Cantalloube ... |
来源:[J].Astronomy & Astrophysics(IF 5.084), 2019, Vol.632EDP Sciences |
摘要:Context. PDS 70 is a young (5.4 Myr), nearby (~113 pc) star hosting a known transition disk with a large gap. Recent observations with SPHERE and NACO in the near-infrared (NIR) allowed us to detect a planetary mass companion, PDS 70 b, within the disk cavity. Moreover, obse... |
作者:Silvia Carolina Mora-Partiarroyo , Marita Krause , Aritra Basu ... |
来源:[J].Astronomy & Astrophysics(IF 5.084), 2019, Vol.632EDP Sciences |
摘要:Aims. NGC 4631 is an interacting galaxy that exhibits one of the largest, gaseous halos observed among edge-on galaxies. We aim to examine the synchrotron and cosmic-ray propagation properties of its disk and halo emission with new radio continuum data. Methods. Radio contin... |
作者:Virginia Cuomo , J. Alfonso Lopez Aguerri , Enrico Maria Corsini ... |
来源:[J].Astronomy & Astrophysics(IF 5.084), 2019, Vol.632EDP Sciences |
摘要:Context. About 35% of the nearby disc galaxies host a weak bar for which different formation scenarios, including the weakening of a strong bar and tidal interaction with a companion, have been suggested. Measuring the bar pattern speeds of a sample of weakly barred galaxies is a... |
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