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相关论文: Herbig-Haro Flows and Young Stars in the Dobashi 5…

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The presence of three more Herbig Ae/Be (HAeBe) stars in the Cepheus Flare within a 1.5$^{\circ}$ radius centered on HD 200775 suggests that star formation is prevalent in a wider region of the LDN 1147/1158, LDN 1172/1174, and LDN 1177…

太阳与恒星天体物理 · 物理学 2021-09-29 Piyali Saha , Maheswar G. , Blesson Mathew , U. S. Kamath

We present a high spatial resolution Chandra X-ray study of two Infrared Dark Clouds (IRDCs), G034.43+00.24 and G035.39-00.33, which are expected to be in the early phases of star cluster formation. We detect 112 and 209 valid X-ray point…

星系天体物理 · 物理学 2020-12-23 Hanbo Yu , Junfeng Wang , Jonathan C. Tan

We present a multi-wavelength study of the star forming region ISOSS J 20298+3559, which was identified by a cross-correlation of cold compact sources from the 170 micron ISOPHOT Serendipity Survey (ISOSS) database coinciding with objects…

天体物理学 · 物理学 2009-11-07 O. Krause , D. Lemke , L. V. Toth , U. Klaas , M. Haas , M. Stickel , R. Vavrek

We derive a catalog of early-type emission-line stars including 30,048 spectra of 25,886 stars from LAMOST DR7, in which 3,922 have Simbad records. The sample is obtained using K-Nearest Neighbor and Random Forest methods and visually…

太阳与恒星天体物理 · 物理学 2022-03-30 Yun-Jun Zhang , Wen Hou , A-Li Luo , Shuo Li , Li Qin , Yan Lu , Yin-Bi Li , Jian-Jun Chen , Yong-Heng Zhao

We present optical spectroscopy observations of 145 high-mass pre-main sequence candidates from the catalogue of Vioque et al. (2020). From these, we provide evidence for the Herbig nature of 128 sources. This increases the number of known…

We investigate the star-formation ocurring in the region towards IRAS07527-3446 in the molecular cloud [MAB97]250.63-3.63, in the far outer Galaxy. We report the discovery of a new young stellar cluster, and describe its properties and…

星系天体物理 · 物理学 2015-05-13 Joao L. Yun , Davide Elia , Pedro M. Palmeirim , Joana I. Gomes , Andre M. Martins

We have searched the Lynds 988 dark cloud complex for optical (\ha{} and \sii{}) and near-IR (\mh{} 2.12 $\mu$m) shocks from protostellar outflows. We find 20 new Herbig-Haro objects and 6 new \mh{} shocks (MHO objects), 3 of which are…

太阳与恒星天体物理 · 物理学 2015-06-16 Josh Walawender , Bo Reipurth , John Bally

We present the results of a photographic and CCD imaging survey for Herbig-Haro (HH) objects in the L1630 and L1641 giant molecular clouds in Orion. The new HH flows were initially identified from a deep H-alpha film from the recently…

天体物理学 · 物理学 2009-10-31 S. L. Mader , W. J. Zealey , Q. A. Parker , M. R. W. Masheder

The luminous Young Stellar Object (YSO) IRAS 07422-2001 is studied in the infrared. We discover star forming activity in embedded clusters located in a cloud detected at mid-IR wavelengths in emission. Multiple outflows are discovered from…

太阳与恒星天体物理 · 物理学 2015-06-04 Watson P. Varricatt

We present images and initial results from our extensive Spitzer Space Telescope imaging survey of the W5 H II region with the Infrared Array Camera (IRAC) and Multiband Imaging Photometer for Spitzer (MIPS). We detect dense clusters of…

We identify 20 F-type Herbig stars and provide a list of 22 pre-main-sequence candidates from LAMOST DR8. The effective temperature, distance, extinction, stellar luminosity, mass, and radius are derived for each Herbig star based on…

太阳与恒星天体物理 · 物理学 2022-09-21 Yun-Jin Zhang , A-Li Luo , Bi-Wei Jiang , Wen Hou , Fang Zuo , Bing Du , Shuo Li , Yong-Heng Zhao

The filament IRDC G035.39--00.33 in the W48 molecular complex is one of the darkest infrared clouds observed by \textit{Spitzer}. It has been observed by the PACS (70 and 160\,$\micron$) and SPIRE (250, 350, and 500\,$\micron$) cameras of…

We present HST/NICMOS observations with 0.1" (15 AU) resolution of six young stellar objects in the Taurus star-formation region. The targets of our survey are three Class I IRAS sources (IRAS 04016+2610, IRAS 04248+2612, and IRAS…

Context. Outflows and jets are the first signposts of ongoing star formation processes in any molecular cloud, yet their study in optical bands provides limited results due to the large extinction present. Near-infrared unbiased wide-field…

We present FEROS high-resolution (R~45000) optical spectroscopy of 34 Herbig Ae/Be star candidates with previously unknown or poorly constrained spectral types. Within the sample, 16 sources are positionally coincident with nearby (d<250…

太阳与恒星天体物理 · 物理学 2015-05-18 A. Carmona , M. E. van den Ancker , M. Audard , Th. Henning , J. Setiawan , J. Rodmann

We present NIR and MIR observations of eight embedded young stellar groups around Herbig Ae/Be stars (HAEBEs) using archived Spitzer IRAC data and 2MASS data. These young stellar groups are nearby ($\leq$ 1 kpc) and still embedded within…

天体物理学 · 物理学 2011-02-11 Shiya Wang , Leslie W. Looney

We present new high resolution (R=18,000) near-infrared spectroscopic observations of a sample of classical FU Orionis stars (FUors) and other young stars with FUor characteristics that are sources of Herbig-Haro flows. Spectra are…

天体物理学 · 物理学 2009-11-13 Tom Greene , Colin Aspin , Bo Reipurth

We have used the 2.56m Nordic Optical Telescope (NOT) to observe two deep fields in L1641N, selected on the basis of previous shock studies, using the 2.12 micron transition of H2 (and a Ks filter to sample the continuum) for a total…

天体物理学 · 物理学 2007-05-23 M. Gaalfalk , G. Olofsson

Herbig Ae/Be stars (HAeBes) are critical tracers of intermediate- and high-mass star formation, yet their census remains incomplete compared to low-mass young stellar objects like T-Tauri stars. To expand the known population, we…

太阳与恒星天体物理 · 物理学 2026-01-21 Jialin Liu , Jiaming Liu , Jiya Yao , Zhenghao Cheng , Qingyue Qu , Zhicun Liu , Wenyuan Cui , Min Fang

We discuss wide-field near-IR imaging of the NGC1333, L1448, L1455 and B1 star forming regions in Perseus. The observations have been extracted from a much larger narrow-band imaging survey of the Taurus-Auriga-Perseus complex. These H2…

天体物理学 · 物理学 2009-06-23 C. J. Davis , P. Scholz , P. Lucas , M. D. Smith , A. Adamson