中文
相关论文

相关论文: SiO Maser Survey toward the Inner Galactic Disk: 4…

200 篇论文

We have surveyed 401 color selected IRAS sources in the Galactic disk in the SiO J=1--0 v= 1 and 2 maser lines at 43 GHz, resulting in 254 (239 new) detections. The observed sources lie mostly in a strip of the inner Galactic disk with…

天体物理学 · 物理学 2015-06-24 S. Deguchi , T. Fujii , I. S. Glass , H. Imai , Y. Ita , H. Izumiura , O. Kameya , A. Miyazaki , Y. Nakada , J. Nakashima

We have surveyed ~400 known large-amplitude variables within 15' of the galactic center in the SiO J=1--0 v=1 and 2 maser lines at 43 GHz, resulting in 179 detections. SiO lines were also detected from 16 other resulting in 180 detections.…

天体物理学 · 物理学 2015-06-24 S. Deguchi , H. Imai , T. Fujii , I. S. Glass , Y. Ita , H. Izumiura , O. Kameya , A. Miyazaki , Y. Nakada , J. Nakashima

We present the results of observations of cold IRAS sources in the Galactic disk area, -10 < l < 100 and |b|<5, in the SiO J=1-0, v=1 and 2 maser lines. SiO masers were detected in 51 out of 143 observed sources; 45 were new detections in…

天体物理学 · 物理学 2015-06-24 Jun-ichi Nakashima , Shuji Deguchi

Mapping and monitoring observations of SiO maser sources near the Galactic center were made with the Nobeyama 45-m telescope at 43 GHz. Rectangular mapping an area of approximately 200'' x 100''$ in a 30'' grid, and triangular mapping in a…

天体物理学 · 物理学 2015-06-24 Shuji Deguchi , Takahiro Fujii , Makoto Miyoshi , Jun-ichi Nakashima

A moderately deep survey of stellar maser sources toward the Galactic center has been made in the SiO J=1-0 v=1 and v=2 transitions (~ 43 GHz) with the Nobeyama 45-m telescope of a beam size of about 40". At the Galactic center (Sgr A*), 7…

天体物理学 · 物理学 2009-10-30 Hideyuki Izumiura , Shuji Deguchi , Takahiro Fujii

We surveyed 291 MSX/2MASS infrared objects in the 7 x 2 deg area of the galactic center in the 43 GHz SiO J=1--0 v=1 and 2 maser lines, obtaining accurate radial velocities of 163 detected objects. The surveyed area is the region where the…

We conducted an SiO maser survey towards 221 O-rich AGB stars with the aim of identifying maser emission associated with the Sagittarius stellar stream. In this survey, maser emission was detected in 44 targets, of which 35 were new…

星系天体物理 · 物理学 2017-11-29 Yuanwei Wu , Noriyuki Matsunaga , Ross A. Burns , Bo Zhang

We have surveyed known large-amplitude variables within 15' of the Galactic center in the SiO J=1-0 v=1 and 2 maser lines at 43 GHz, resulting in 79 detections and 58 non-detections. The detection rate of 58 percent is comparable to that…

天体物理学 · 物理学 2015-06-24 H. Imai , S. Deguchi , T. Fujii , I. S. Glass , Y. Ita , H. Izumiura , O. Kameya , A. Miyazaki , Y. Nakada , J. Nakashima

We have searched for the SiO J=1--0 v= 1 and 2 maser lines at ~ 43 GHz in 277 2MASS/MSX/IRAS sources off the Galactic plane (|b|> 3 deg), which resulted in 119 (112 new) detections. Among the new detections, are two very faint objects with…

We present 86 GHz (v = 1, J = 2 -1) SiO maser line observations with the IRAM 30-m telescope of a sample of 441 late-type stars in the Inner Galaxy (-4 degr < l < +30 degr). These stars were selected on basis of their infrared magnitudes…

天体物理学 · 物理学 2009-11-07 M. Messineo , H. J. Habing , L. O. Sjouwerman , A. Omont , K. M. Menten

A group of Mira variables in the solar neighborhood show unusual spatial motion in the Galaxy. To study this motion in a much larger scale in the Galaxy, we newly surveyed 134 evolved stars off the Galactic plane by SiO maser lines,…

星系天体物理 · 物理学 2015-05-18 Shuji Deguchi , Tomomi Shimoikura , Kazutaka Koike

We present results on a search for 86.243 GHz SiO (J = 2 -- 1, v = 1) maser emission toward 67 OH/IR stars located near the Galactic Centre. We detected 32 spectral peaks, of which 28 correspond to SiO maser lines arising from the envelopes…

星系天体物理 · 物理学 2020-07-08 M. Messineo , L. O. Sjouwerman , H. J. Habing , A. Omont

Studying stars that are located off the Galactic plane is important for understanding the formation history of the Milky Way. We searched for SiO masers toward off-plane O-rich asymptotic giant branch (AGB) stars from the catalog presented…

星系天体物理 · 物理学 2023-10-23 Wenjin Yang , Yuanwei Wu , Yan Gong , Nicolas Mauron , Bo Zhang , Karl M. Menten , Xiaofeng Mai , Dejian Liu , Juan Li , Jingjing Li

We present results of 3 mm observations of SiO maser sources in the Galactic Centre (GC) from observations with the Australia Telescope Compact Array between $2010-2014$, along the transitions of the SiO molecule at $v = 1, J = 2-1$ at…

In order to study the streaming motions of miras in the Solar neighborhood, we newly surveyed 379 red variables in the SiO maser lines at 42.821 and 43.122 GHz with the Nobeyama 45m radio telescope. Accurate radial velocities were obtained…

星系天体物理 · 物理学 2015-05-30 S. Deguchi , T. Sakamoto , T. Hasegawa

We have searched for 22 GHz H2O and 43/86/129 GHz SiO masers in bright IRAS point sources in the SMC and LMC, to test whether the kinematics of the mass loss from these stars depends on metallicity. H2O masers were detected in the red…

天体物理学 · 物理学 2009-11-06 Jacco Th. van Loon , Albert A. Zijlstra , Valentin Bujarrabal , Lars-Ake Nyman

Aims. Red supergiants (RSGs) are among the most luminous of all stars, easily detectable in external galaxies, and may ideally serve as kinematic tracers of Galactic structure. Some RSGs are surrounded by circumstellar envelopes detectable…

星系天体物理 · 物理学 2015-06-04 L. Verheyen , M. Messineo , K. M. Menten

Context: The Red MSX Source (RMS) survey has identified a large sample of candidate massive young stellar objects (MYSOs) and ultra compact (UC) HII regions from a sample of ~2000 MSX and 2MASS colour selected sources. Aims: To search for…

We investigated stellar maser sources with no IRAS counterpart at the radio, middle-infrared, and near-infrared wavelengths. A 43 GHz SiO maser search for 120 2MASS/MSX objects, and 10 OH 1612 MHz sources with no or a very faint MSX…

天体物理学 · 物理学 2015-06-24 S. Deguchi , J. Nakashima , T. Miyata , Y. Ita

We present an 86 GHz SiO (v = 1, J = 2 ---> 1) maser search toward late-type stars located within |b|<0.5 deg and 20 deg < l < 50 deg. This search is an extension at longer longitudes of a previously published work. We selected 135 stars…

星系天体物理 · 物理学 2018-11-07 M. Messineo , H. J. Habing , L. O. Sjouwerman , A. Omont , K. M. Menten
‹ 上一页 1 2 3 10 下一页 ›