中文
相关论文

相关论文: A Census of Stars and Disks in Corona Australis

200 篇论文

Corona-Australis is one of the nearest regions to the Sun with recent and ongoing star formation, but the current picture of its stellar (and substellar) content is not complete yet. We take advantage of the second data release of the Gaia…

太阳与恒星天体物理 · 物理学 2020-02-19 P. A. B. Galli , H. Bouy , J. Olivares , N. Miret-Roig , L. M. Sarro , D. Barrado , A. Berihuete , W. Brandner

We combine published optical and near-infrared photometry to identify new low-mass candidate members in an area of about 0.64 deg^2 in Corona Australis, using the S-parameter method. Five new candidate members of the region are selected,…

We present Spitzer Space Telescope IRAC and MIPS observations of a 0.85 deg^2 field including the Corona Australis (CrA) star-forming region. At a distance of 130 pc, CrA is one of the closest regions known to be actively forming stars,…

The star-forming complex of Corona Australis (CrA) is one of the closest and most isolated molecular clouds. It belongs to a chain of clusters that show age gradients with distance from the galactic plane. We aim to provide suggestions…

太阳与恒星天体物理 · 物理学 2025-08-28 Elisabetta Rigliaco , Raffaele Gratton , Valerio Nascimbeni

At a distance of about 130 pc, the Corona Australis molecular cloud complex is one of the nearest regions with ongoing and/or recent star formation. It is a region with highly variable extinction of up to AV~45 mag, containing, at its core,…

天体物理学 · 物理学 2008-08-26 Ralph Neuhäuser , Jan Forbrich

We present the results of a deep optical survey in the Corona Australis and Chamaeleon II star forming regions. Our optical photometry is combined with available near- and mid-infrared photometry to identify very low-mass candidate members…

天体物理学 · 物理学 2016-08-16 Belén López Martí , Jochen Eislöffel , Reinhard Mundt

In recent years, the disk populations in a number of young star-forming regions have been surveyed with ALMA. Understanding the disk properties and their correlation with those of the central star is critical to understand planet formation.…

The CrA region and the Coronet cluster form a nearby (138 pc), young (1-2 Myr) star-forming region hosting a moderate population of YSO. We present Herschel PACS photometry at 100 and 160 micron, obtained as part of the Herschel Gould Belt…

太阳与恒星天体物理 · 物理学 2015-06-12 Aurora Sicilia-Aguilar , Thomas Henning , Hendrik Linz , Philippe Andre , Amy Stutz , Carlos Eiroa , Glenn J. White

The substellar initial mass function (IMF) and the formation mechanisms of brown dwarfs (BDs) remain key open questions in star formation theory. IMF characterization in a large number of star-forming regions (SFRs) is essential for…

The R CrA star-forming region has a small dark cloud with quite a number of protostars, T Tauri stars, and some Herbig Ae/Be stars, plus a number of weak-line T Tauri stars around the cloud found by ROSAT follow-up observations. We searched…

天体物理学 · 物理学 2009-11-13 R. Köhler , R. Neuhäuser , S. Krämer , Ch. Leinert , T. Ott , A. Eckart

We present 450 and 850 um maps of R Coronae Australis. We compare the maps to previous surveys of the region, and shed new light on the previously unknown nature of the protostellar sources at the centre of the cloud. We clarify the nature…

天体物理学 · 物理学 2009-11-10 David J. Nutter , D. Ward-Thompson , P. Andre

We present a catalogue of prestellar and starless cores within the Corona Australis molecular cloud using photometric data from the Herschel Space Observatory. At a distance of d~130 pc, Corona Australis is one of the closest star-forming…

We study the kinematics of the recently discovered Corona Australis (CrA) chain of clusters by examining the 3D space motion of its young stars using Gaia DR3 and APOGEE-2 data. While we observe linear expansion between the clusters in the…

星系天体物理 · 物理学 2023-11-15 L. Posch , N. Miret-Roig , J. Alves , S. Ratzenböck , J. Großschedl , S. Meingast , C. Zucker , A. Burkert

The Taurus-Auriga association and its associated molecular cloud are a benchmark population for studies of star and planet formation. The census of Taurus-Auriga has been assembled over seven decades and has inherited the biases,…

We use the 2MASS Second Incremental Release Point Source Catalog to investigate the spatial distribution of young stars in the Perseus, Orion A, Orion B, and MonR2 molecular clouds. After subtracting a semi-empirical model of the field star…

天体物理学 · 物理学 2011-03-28 John M. Carpenter

In this paper, we present a novel view on the morphology and the dynamical state of 10 prominent, nearby ($\leq$ 500 pc), and young ($\sim$30-300 Myr) open star clusters with Gaia DR2: $\alpha\,$Per, Blanco 1, IC 2602, IC 2391, Messier 39,…

星系天体物理 · 物理学 2021-07-26 Stefan Meingast , João Alves , Alena Rottensteiner

We used high-resolution near-infrared spectroscopy from the NIRSPEC instrument on the Keck II telescope, taken over multiple epochs spanning five years, to examine two young binary T Tauri star systems, S Corona Australis and VV Corona…

太阳与恒星天体物理 · 物理学 2019-10-16 Kendall Sullivan , L. Prato , Suzan Edwards , Ian Avilez , Gail Schaefer

Context. Pre-stellar cores are the birthplaces of Sun-like stars and represent the initial conditions for the assembly of protoplanetary systems. Due to their short lifespans, they are rare. In recent efforts to increase the number of such…

太阳与恒星天体物理 · 物理学 2025-04-23 E. Redaelli , S. Spezzano , P. Caselli , J. Harju , D. Arzoumanian , O. Sipilä , A. Belloche , F. Wyrowski , J. E. Pineda

We have performed a survey for new members of the Ophiuchus cloud complex using high-precision astrometry from the second data release of Gaia, proper motions measured with multi-epoch images from the Spitzer Space Telescope, and…

太阳与恒星天体物理 · 物理学 2020-06-10 T. L. Esplin , K. L. Luhman

With recent Herschel observations, the northern filament of the Corona Australis cloud has now been mapped in a number of bands from 1.2um to 870um. The data set provides a good starting point for the study of the cloud over several orders…

星系天体物理 · 物理学 2015-06-05 M. Juvela , V. -M. Pelkonen , G. J. White , V. Konyves , J. Kirk , P. Andre
‹ 上一页 1 2 3 10 下一页 ›