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MIY01 - SiO Maser Survey in the Galactic Center Region with a Multi-Beam Receiver

Short title: Miyazaki et al. (2001)
Authors: Miyazaki, Atsushi Deguchi, Shuji Tsuboi, Masato Kasuga, Takashi Takano, Shuro
Journal: Publications of the Astronomical Society of Japan, vol.53, no. 3, p. 501-507
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Abstract
We have made a wide-field survey of SiO masers in the 7' � 13' area around the Galactic center with the Nobeyama 45-m radio telescope using a 2 � 3 multi-beam SIS mixer receiver at 43 GHz. We detected 9 SiO maser sources (6 of them are new) newly detected 6 sources have been identified with Miras or OH 1612 MHz maser sources. The source surface number density, ~360 per square degree, found in this survey is slightly smaller than the number density of OH 1612 MHz sources in the same area. A least-squares analysis of the radial velocities of the detected sources has revealed a rapid rotation of the stars around the Galactic center. This implies that most of the objects detected in this survey belong to the nuclear disk near the Galactic center.

Abstract

We have made a wide-field survey of SiO masers in the 7' � 13' area around the Galactic center with the Nobeyama 45-m radio telescope using a 2 � 3 multi-beam SIS mixer receiver at 43 GHz. We detected 9 SiO maser sources (6 of them are new) newly detected 6 sources have been identified with Miras or OH 1612 MHz maser sources. The source surface number density, ~360 per square degree, found in this survey is slightly smaller than the number density of OH 1612 MHz sources in the same area. A least-squares analysis of the radial velocities of the detected sources has revealed a rapid rotation of the stars around the Galactic center. This implies that most of the objects detected in this survey belong to the nuclear disk near the Galactic center.

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Detection table from Miyazaki et al. (2001)

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DSS colored	2MASS colored	WISE colored
SDSS color	IRAC color I1,I2,I4	GLIMPSE 360
PACS color (70-160 um)	SPIRE color (250-500 um)	NVSS (1.4GHz)
ATLASGAL 870 um	ATLASGAL 870 um + Planck	Bolocam 1.1 mm
UKIDSS K Download UKIDSS K FITS	2MASS K Download 2MASS K FITS

select MAX(sio_data_all.ra_hms) as ra_hms,MAX(sio_data_all.dec_dms) as dec_dms,MAX(sio_data_all.source_name) as source_name,MAX(sio_data_all.ra) as ra,MAX(sio_data_all.dec) as dec,MAX(sio_data_all.l) as l,MAX(sio_data_all.b) as b,MAX(sio_data_all.grp) as grp,MAX(sio_data_all.other_name) as other_name,MAX(sio_data_all.other_desc) as other_desc,BOOL_OR(thermal) as thermal,MAX(sio_data_all.line) as line,MAX(sio_data_all.vrange) as vrange,MAX(sio_data_all.vpeak) as vpeak,MAX(sio_data_all.peak) as peak,MAX(sio_data_all.fwhm) as fwhm,MAX(sio_data_all.int) as int,MAX(sio_data_all.rms) as rms,MAX(sio_data_all.units) as units,MAX(sio_data_all.units_rms) as units_rms,MAX(sio_data_all.date_txt) as date_txt,MAX(sio_data_all.telescope_ref) as telescope_ref,MAX(sio_data_all.telescope_conf) as telescope_conf,MAX(sio_data_all.v_step) as v_step,MAX(sio_data_all.beam) as beam,MAX(sio_data_all.beam_maj) as beam_maj,MAX(sio_data_all.beam_min) as beam_min,MAX(sio_data_all.beam_pa) as beam_pa,MAX(sio_data_all.ref) as ref,MAX(sio_data_all.list_ref) as list_ref,MAX(sio_data_all.ascii) as ascii,MAX(sio_data_all.image) as image,MAX(sio_data_all.descr) as descr,MAX(sio_data_all.id) as id,BOOL_OR(mjy_flag) as mjy_flag,BOOL_OR(rms_mjy_flag) as rms_mjy_flag,MAX(sio_data_all.dist) as dist,1 as dist_parallax,MAX(sio_data_all.date_txt) as date_txt,MAX(line_det) as line_det,MAX(type) as type,MAX(simbad_types_cat) as simbad_types_cat FROM sio_data_all  LEFT JOIN all_objects_withmet ON sio_data_all.grp=all_objects_withmet.group_name LEFT JOIN object_categories ON all_objects_withmet.group_name = object_categories.group_name_cat AND object_categories.tbl_cat = 'all_objects_withmet' WHERE ref ilike 'MIY01' AND detected=true AND hide=false GROUP BY ref

select sio_data_all.ra_hms,sio_data_all.dec_dms,sio_data_all.source_name,sio_data_all.ra,sio_data_all.dec,sio_data_all.l,sio_data_all.b,sio_data_all.grp,sio_data_all.other_name,sio_data_all.other_desc,sio_data_all.thermal,sio_data_all.line,sio_data_all.vrange,sio_data_all.vpeak,sio_data_all.peak,sio_data_all.fwhm,sio_data_all.int,sio_data_all.rms,sio_data_all.units,sio_data_all.units_rms,sio_data_all.date_txt,sio_data_all.telescope_ref,sio_data_all.telescope_conf,sio_data_all.v_step,sio_data_all.beam,sio_data_all.beam_maj,sio_data_all.beam_min,sio_data_all.beam_pa,sio_data_all.ref,sio_data_all.list_ref,sio_data_all.ascii,sio_data_all.image,sio_data_all.descr,sio_data_all.id,sio_data_all.mjy_flag,sio_data_all.rms_mjy_flag,sio_data_all.dist,sio_data_all.dist_parallax,sio_data_all.date_txt,line_det,type,simbad_types_cat FROM sio_data_all   LEFT JOIN all_objects_withmet ON sio_data_all.grp=all_objects_withmet.group_name LEFT JOIN object_categories ON all_objects_withmet.group_name = object_categories.group_name_cat AND object_categories.tbl_cat = 'all_objects_withmet' WHERE ref ilike 'MIY01' AND detected=true AND hide=false ORDER BY detected DESC,id

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MIY01 - SiO Maser Survey in the Galactic Center Region with a Multi-Beam Receiver

View as list of objects

Detection table from Miyazaki et al. (2001)