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Related papers: An SiO Maser Search off the Galactic Plane

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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…

Astrophysics of Galaxies · Physics 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 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…

Astrophysics · Physics 2015-06-24 Jun-ichi Nakashima , Shuji Deguchi

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…

Astrophysics of Galaxies · Physics 2017-11-29 Yuanwei Wu , Noriyuki Matsunaga , Ross A. Burns , Bo Zhang

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…

Astrophysics · Physics 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 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…

Astrophysics · Physics 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 present the results of an SiO maser survey for color-selected IRAS sources in the area 40 < l < 70 and |b| < 10 in the SiO J=1-0, v=1 and 2 transitions. We detected 134 out of 272 observed sources in SiO masers; 127 were new detections.…

Astrophysics · Physics 2015-06-24 Jun-ichi Nakashima , Shuji Deguchi

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.…

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

A 22 GHz water maser survey was conducted towards 178 O-rich AGB stars with the aim of identifying maser emission associated with the Sagittarius stellar stream. In this survey, maser emissions were detected in 21 targets, of which 20 were…

Astrophysics of Galaxies · Physics 2022-09-14 Yuanwei Wu , Bo Zhang , Jingjing Li , Xing-Wu Zheng

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…

Astrophysics · Physics 2009-10-30 Hideyuki Izumiura , Shuji Deguchi , Takahiro Fujii

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…

Astrophysics of Galaxies · Physics 2020-07-08 M. Messineo , L. O. Sjouwerman , H. J. Habing , A. Omont

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…

Astrophysics · Physics 2015-06-24 Shuji Deguchi , Takahiro Fujii , Makoto Miyoshi , Jun-ichi Nakashima

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,…

Astrophysics of Galaxies · Physics 2015-05-18 Shuji Deguchi , Tomomi Shimoikura , Kazutaka Koike

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 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…

Astrophysics · Physics 2009-11-07 M. Messineo , H. J. Habing , L. O. Sjouwerman , A. Omont , K. M. Menten

Asymptotic Giant Branch (AGB) stars are good tracers of the Galactic structure. They are bright in the infrared and can therefore be detected even in the most obscured regions of the Galaxy. Maser emission from their circumstellar envelopes…

Astrophysics · Physics 2007-05-23 Maria Messineo

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…

Astrophysics of Galaxies · Physics 2018-11-07 M. Messineo , H. J. Habing , L. O. Sjouwerman , A. Omont , K. M. Menten

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…

Astrophysics of Galaxies · Physics 2019-10-01 A. Borkar , A. Eckart , C. Straubmeier , L. O. Sjouwerman , V. Karas , D. Kunneriath , L. Moser , S. Britzen , M. Valencia-S , A. Donea , A. Zensus

Recently, a relationship between the water maser detection rate and far infrared (FIR) flux densities has been established as a result of two 22 GHz maser surveys in a complete sample of galaxies (Dec>-30 degree) with 100 micron flux…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 G. Surcis , A. Tarchi , C. Henkel , J. Ott , J. Lovell , P. Castangia

Recently, a relationship between the water maser detection rate and far infrared (FIR) flux density has been found as a result of a 22 GHz maser survey in a sample comprised of northern galaxies with 100 micron flux density > 50 Jy and a…

Astrophysics · Physics 2007-12-06 P. Castangia , A. Tarchi , C. Henkel , K. M. Menten

We present a compilation and study of DENIS, 2MASS, ISOGAL, MSX and IRAS 1--25 micron photometry for a sample of 441 late-type stars in the inner Galaxy, which we previously searched for 86 GHz SiO maser emission (Messineo et al.2002). The…

Astrophysics · Physics 2009-11-10 M. Messineo , H. J. Habing , K. M. Menten , A. Omont , L. O. Sjouwerman
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