中文
相关论文

相关论文: A multi-wavelength study of star formation activit…

200 篇论文

We present the {\it Spitzer}-IRAC images of the S235 star forming complex that includes the East~1 & 2, Central and S235 A & B regions. In addition, we present the near-infrared images of the S235 A & B regions. The IRAC photometry reveals…

星系天体物理 · 物理学 2015-05-27 L. K. Dewangan , B. G. Anandarao

We present a picture of star formation around the HII region Sh2-235 (S235) based upon data on the spatial distribution of young stellar clusters and the distribution and kinematics of molecular gas around S235. We observed 13CO(1-0) and…

天体物理学 · 物理学 2009-11-13 M. S. Kirsanova , A. M. Sobolev , M. Thomasson , D. S. Wiebe , L. E. B. Johansson , A. F. Seleznev

We present a detailed multi-wavelength study of observations from X-ray, near-infrared to centimeter wavelengths to probe the star formation processes in the S237 region. Multi-wavelength images trace an almost sphere-like shell morphology…

星系天体物理 · 物理学 2017-01-04 L. K. Dewangan , D. K. Ojha , I. Zinchenko , P. Janardhan , A. Luna

We report on new aspects of the star-forming region S235AB revealed through high-resolution observations at radio and mid-infrared wavelengths. Using the Very Large Array, we carried out sensitive observations of S235AB in the cm continuum…

天体物理学 · 物理学 2009-11-11 Marcello Felli , Fabrizio Massi , Massimo Robberto , Riccardo Cesaroni

We present a multi-wavelength data analysis of the extended star-forming region S235 (hereafter E-S235), where two molecular clouds are present. In E-S235, using the 12CO (1-0) and 13CO (1-0) line data, a molecular cloud linked with the…

星系天体物理 · 物理学 2017-11-15 L. K. Dewangan , D. K. Ojha

We present a multi-wavelength analysis of a $\sim$30$' \times$30$'$ area around the Sh 2-53 region (hereafter S53 complex), which is associated with at least three H II regions, two mid-infrared bubbles (N21 and N22), and infrared dark…

星系天体物理 · 物理学 2018-01-31 T. Baug , L. K. Dewangan , D. K. Ojha , Kengo Tachihara , A. K. Pandey , Saurabh Sharma , M. Tamura , J. P. Ninan , S. K. Ghosh

We present a detailed study of the massive star-forming region G35.2-0.74N with ALMA 1.3 mm multi-configuration observations. At 0.2" (440 au) resolution, the continuum emission reveals several dense cores along a filamentary structure,…

We present the results of a multi-faceted study of the high-mass star-forming region S235. With the CalTech Submillimeter Observatory (CSO), we have observed and/or mapped over fifty molecular transitions and 350 micron dust emission in an…

天体物理学 · 物理学 2008-11-26 Jeong-Eun Lee , Chadwick H. Young , Yancy L. Shirley , Kaisa E. Mueller , Neal J. Evans

IRAS 12272-6240 is a complex star forming region with a compact massive dense clump and several associated masers, located at a well-determined distance of $d=9.3$ kpc from the Sun. For this study, we obtained sub-arcsec broad- and…

星系天体物理 · 物理学 2020-06-29 Mauricio Tapia , Paolo Persi , Miguel Roth , Davide Elia

We sort $4683$ molecular clouds between $10^\circ< \ell <65^\circ$ from the Bolocam Galactic Plane Survey based on observational diagnostics of star formation activity: compact $70$ $\mu{\rm m}$ sources, mid-IR color-selected YSOs, ${\rm…

We present 107 maps of continuum emission at 350 microns from Galactic molecular clumps. Observed sources were mainly selected from the Bolocam Galactic Plane Survey (BGPS) catalog, with 3 additional maps covering star forming regions in…

Gas density and temperature in star forming regions around Sh2-235 are derived from ammonia line observations. This information is used to evaluate formation scenarios and to determine evolutionary stages of the young embedded clusters S235…

We present observational data for two main components (S255IR and S255N) of the S255 high mass star forming region in continuum and molecular lines obtained at 1.3 mm and 1.1 mm with the SMA, at 1.3 cm with the VLA and at 23 and 50 cm with…

星系天体物理 · 物理学 2015-06-05 I. Zinchenko , S. -Y. Liu , Y. -N. Su , S. Kurtz , D. K. Ojha , M. R. Samal , S. K. Ghosh

The S235A-B star forming region has been extensively observed in the past from the radio to the near-IR, but what was happening in the immediate surroundings of the water maser, placed in between the two nebulosities, was still unclear…

天体物理学 · 物理学 2009-11-10 M. Felli , F. Massi , A. Navarrini , R. Neri , R. Cesaroni , T. Jenness

The Bolocam Galactic Plane Survey (BGPS) data for a six square degree region of the Galactic plane containing the Galactic center is analyzed and compared to infrared and radio continuum data. The BGPS 1.1 mm emission consists of clumps…

Magnetic fields are ubiquitous and essential in star formation. In particular, their role in regulating formation of stars across diverse environments like HII regions needs to be well understood. In this study, we present magnetic field…

星系天体物理 · 物理学 2021-04-28 R. Devaraj , D. P. Clemens , L. K. Dewangan , A. Luna , T. P. Ray , J. Mackey

The article deals with observations of star-forming regions S231-S235 in 'quasi-thermal' lines of ammonia (NH$_3$), cyanoacetylene (HC$_3$N) and maser lines of methanol (CH$_3$OH) and water vapor (H$_2$O). S231-S235 regions is situated in…

星系天体物理 · 物理学 2016-05-31 D. A. Ladeyschikov , M. S. Kirsanova , A. P. Tsivilev , A. M. Sobolev

We present Spitzer-IRAC, NOAO 2.1meter-Flamingos, Keck-NIRC, and FCRAO-SEQUOIA observations of the massive star forming complex S254-S258, covering an area of 25x20 arc-minutes. Using a combination of the IRAC and NIR data, we identify and…

天体物理学 · 物理学 2014-11-18 L. Chavarria , L. Allen , J. L. Hora , C. Brunt , G. G. Fazio

The main objective of this paper is to study the possibility of triggered star formation on the border of the HII region S233, which is formed by a B-star. Using high-resolution spectra we determine the spectral class of the ionizing star…

太阳与恒星天体物理 · 物理学 2016-05-31 D. A. Ladeyschikov , A. M. Sobolev , S. Yu. Parfenov , S. A. Alexeeva , J. H. Bieging

We present a comprehensive study of star formation toward the H II region S155. Star-formation activities therein were investigated based on multi-wavelength data from optical to the far-infrared. The surface density distribution of…

太阳与恒星天体物理 · 物理学 2015-06-19 Ya Fang Huang , Jin Zeng Li , Travis A. Rector , Zhou Fan
‹ 上一页 1 2 3 10 下一页 ›