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相关论文: The enhanced YSO population in Serpens

200 篇论文

Accurate measurements of statistical properties, such as the star formation rate and the lifetime of young stellar objects (YSOs) in different stages, is essential for constraining star formation theories. However, it is a difficult task to…

太阳与恒星天体物理 · 物理学 2021-05-04 Yi-Lung Chiu , Chi-Ting Ho , Daw-Wei Wang , Shih-Ping Lai

We present a catalog of 652 young stellar objects (YSOs) in the Carina star-forming region. The catalog was constructed by combining near-infrared Ks-band variability from the VISTA Variables in the Via Lactea eXtended survey and…

Context: Photometric variability is a defining characteristic of young stellar objects (YSO), which can be traced back to a range of physical processes taking place at different stages of young stars' formation and early evolution. Gaia's…

太阳与恒星天体物理 · 物理学 2026-01-21 Chloé Mas , Julia Roquette , Marc Audard , Mate Madarász , Gabor Marton , David Hernandez , Ilknur Gezer , Odysseas Dionatos

The Serpens OB2 association (l ~ 18.5 deg, b ~ 1.9 deg, d = 1950 +/- 30 pc) is a large star-forming complex ~65 pc above the Galactic midplane, with a clumpy, elongated structure extending ~50 pc parallel to the plane. We analyse probable…

星系天体物理 · 物理学 2026-02-13 Michael A. Kuhn , Robert A. Benjamin , Simran S. Singh

Young stellar associations hold a star formation record that can persist for millions of years, revealing the progression of star formation long after the dispersal of the natal cloud. To identify nearby young stellar populations that trace…

星系天体物理 · 物理学 2021-08-18 Ronan Kerr , Aaron C. Rizzuto , Adam L. Kraus , Stella S. R. Offner

The second $Gaia$ Data Release (DR2) contains astrometric and photometric data for more than 1.6 billion objects with mean $Gaia$ $G$ magnitude $<$20.7, including many Young Stellar Objects (YSOs) in different evolutionary stages. In order…

太阳与恒星天体物理 · 物理学 2019-05-22 G. Marton , P. Ábrahám , E. Szegedi-Elek , J. Varga , M. Kun , Á. Kóspál , E. Varga-Verebélyi , S. Hodgkin , L. Szabados , R. Beck , Cs. Kiss

We have conducted a study of star formation in the outer Galaxy from 65\degr$< l <$265\degr~in the region observed by the GLIMPSE360 program. This {\it Spitzer} warm mission program mapped the plane of the outer Milky Way with IRAC at 3.6…

星系天体物理 · 物理学 2020-07-22 Elaine Winston , Joseph Hora , Volker Tolls

We present 737 candidate Young Stellar Objects (YSOs) near the W51 Giant Molecular Cloud (GMC) over an area of 1.25 deg x 1.00 deg selected from Spitzer Space Telescope data. We use spectral energy distribution (SED) fits to identify YSOs…

星系天体物理 · 物理学 2014-11-20 Miju Kang , John H. Bieging , Matthew S. Povich , Youngung Lee

Jets and outflows from Young Stellar Objects (YSOs) are important signposts of currently ongoing star formation. In order to study these objects we are conducting an unbiased survey along the Galactic Plane in the 1-0S(1) emission line of…

星系天体物理 · 物理学 2015-06-03 G. Ioannidis , D. Froebrich

We report 1,656 new star clusters found in the Galactic disk (|b|<20 degrees) beyond 1.2 kpc, using Gaia EDR3 data. Based on an unsupervised machine learning algorithm, DBSCAN, and followed our previous studies, we utilized a unique method…

星系天体物理 · 物理学 2022-12-28 Zhihong He , Xiaochen Liu , Yangping Luo , Kun Wang , Qingquan Jiang

We have performed a WISE (Wide-Field Infrared Survey Explorer) based study to identify and characterize young stellar objects (YSOs) in 12x12 degree Perseus OB2 association. Spectral energy distribution (SED) slope in range of 3.4-12 micron…

太阳与恒星天体物理 · 物理学 2015-09-16 Mohaddesseh Azimlu , J. Rafael Martinez-Galarza , August A. Muench

We report 541 new open cluster candidates in Gaia EDR3 through revisiting the cluster results from an earlier analysis of the Gaia DR2, which revealed nearly a thousand open cluster candidates in the solar neighborhood (mostly d < 3 kpc)…

星系天体物理 · 物理学 2022-05-18 Zhihong He , Chunyan Li , Jing Zhong , Guimei Liu , Leya Bai , Songmei Qin , Yueyue Jiang , Xi Zhang , Li Chen

Kinematic information is crucial for understanding the evolution of complex systems, such as interstellar gas. Obtaining full 3D kinematic information is a crucial final step for modeling and interpretation. Molecular clouds are nurseries…

星系天体物理 · 物理学 2025-09-24 Ji-Xuan Zhou , Guang-Xing Li , Bing-Qiu Chen

We systematically searched for open clusters in the solar neighborhood within 500 pc using pyUPMASK and HDBSCAN clustering algorithms based on {\it Gaia} DR3. Taking into consideration that the physical size for most open clusters is less…

太阳与恒星天体物理 · 物理学 2023-03-01 Songmei Qin , Jing Zhong , Tong Tang , Li Chen

We review the use of young low mass stars and protostars, or young stellar objects (YSOs), as tracers of star formation. Observations of molecular clouds at visible, infrared, radio and X-ray wavelengths can identify and characterize the…

星系天体物理 · 物理学 2022-05-04 S. T. Megeath , R. A. Gutermuth , M. A. Kounkel

We present a new processing of XP spectra for 220 million stars released in Gaia DR3. The new data model is capable of handling objects with Teff between 2000 and 50,000 K, and with log g between 0 and 10, including objects of multitude of…

太阳与恒星天体物理 · 物理学 2025-03-06 Dylan Huson , Indiana Cowan , Logan Sizemore , Marina Kounkel , Brian Hutchinson

Young Stellar Objects (YSO) are newly formed stars from molecular clouds. They stay close to where they were born and serve as good tracers to study gas and star formation. During cloud evolution, young massive stars can disrupt the…

星系天体物理 · 物理学 2024-02-08 Ji-Xuan Zhou , Guang-Xing Li , Bing-Qiu Chen

I present a catalog of distances to 63 molecular clouds located within ~2.5 kpc of the Sun. The cloud distances are derived based on utilizing the Gaia DR3 parallaxes of the young stellar objects (YSOs). By identifying AllWISE YSO…

星系天体物理 · 物理学 2023-04-19 Miaomiao Zhang

We have selected 337 intermediate and high-mass YSOs ($1.5$ to $20$ M$_{\odot}$) well-characterised with spectroscopy. By means of the clustering algorithm HDBSCAN, we study their clustering and association properties in the Gaia DR3…

By combining multi-band data from Gaia DR3, MWISP CO, and LAMOST DR11 LSR/MSR, we investigate the co-evolution of stars and their parent molecular cloud in a snake-like stellar structure, named Snake III. Based on 5-D phase-space selection,…

星系天体物理 · 物理学 2026-04-06 Jia-Peng Li , Hai-Jun Tian , Chen Wang , Xiang-Ming Yang , Fan Wang