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NGU88 - A sensitive line search in circumstellar envelopes

Interferometry data

Short title: Nguyen-Quang-Rieu et al. (1988)
Authors: Nguyen-Quang-Rieu Deguchi, S. Izumiura, H. Kaifu, N. Ohishi, M. Suzuki, H. Ukita, Nobuharu
Journal: Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 330, July 1, 1988, p. 374-384. Research supported by the University of Tokyo.
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Abstract
A molecular line search in the range between 85 and 89 GHz has been performed in the circumstellar envelope of 11 evolved stars using the 45 m telescope at Nobeyama Radio Observatory equipped with an acoustooptical spectrometer with a 2 GHz bandwidth. Emissions of ²⁹SiO, ²⁸SiO, HCN, H¹³CN, HC₅N, HCO⁺, C₂H, C₄H, and C₃N have been observed. The authors have detected the ground-state ²⁹SiO J = 2-1 maser in several stars. They have also detected HCN emission in VY CMa, an oxygen-rich star.

Abstract

A molecular line search in the range between 85 and 89 GHz has been performed in the circumstellar envelope of 11 evolved stars using the 45 m telescope at Nobeyama Radio Observatory equipped with an acoustooptical spectrometer with a 2 GHz bandwidth. Emissions of ²⁹SiO, ²⁸SiO, HCN, H¹³CN, HC₅N, HCO⁺, C₂H, C₄H, and C₃N have been observed. The authors have detected the ground-state ²⁹SiO J = 2-1 maser in several stars. They have also detected HCN emission in VY CMa, an oxygen-rich star.

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Detection table from Nguyen-Quang-Rieu et al. (1988)

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ID	Obs. RA	Obs. Dec	l	b	Source name	Line	V_peak	T_a	∫T_a dv	Date	Telescope	List	Ref.
	(J2000)	(J2000)	(deg.)	(deg.)		SiO	(km/s)	(K)	(K*km/s)
1	03 53 28.9	+11 24 22.7	177.954612	-31.411691	IRAS03507+1115	SiO J=2-1 v=0	35	0.72		1987-03-05	NRO	NRO	NGU88
2	04 42 53.7	+36 06 52.6	166.44601	-6.527607	IRAS04395+3601	SiO J=2-1 v=0	-24	< 0.08		1987-03-05	NRO	NRO	NGU88
3	10 16 2.2	+30 34 18	197.715022	55.964082	IRAS10131+3049	SiO J=2-1 v=0	-1	0.13		1987-03-05	NRO	NRO	NGU88
4	10 51 37.3	-21 15 0.5	268.965096	33.601407	IRAS10491-2059	SiO J=2-1 v=0	-13	< 0.08		1987-03-05	NRO	NRO	NGU88
5	19 15 23.2	-07 02 50	29.338339	-8.515286	IRAS19126-0708	SiO J=2-1 v=0	-28	0.28	-8.515	1987-03-05	NRO	NRO	NGU88
6	19 50 34	+32 54 51.2	68.538955	3.276108	IRAS19486+3247	SiO J=2-1 v=0	12	0.45		1987-03-05	NRO	NRO	NGU88
7	23 19 11.7	+17 11 28.4	93.52242	-40.354479	IRAS23166+1655	SiO J=2-1 v=0	-24	< 0.06		1987-03-05	NRO	NRO	NGU88
8	23 34 28	+43 33 02	108.45594	-17.147084	IRAS23320+4316	SiO J=2-1 v=0	-15	0.05		1987-03-05	NRO	NRO	NGU88
9	21 02 18.7	+36 41 38	80.167485	-6.502996	CRL2688	SiO J=2-1 v=0	-32	< 0.07		1987-03-05	NRO	NRO	NGU88

Distribution of sources in all sky (l,b)

Distribution of sources in all sky using Aladin

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Distribution of sources in IRAS color-color diagram

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Original color diagram is taken form van der Veen & Habing (1987)

Type	Description
I	Oxygen-rich non-variable stars without circumstellar shells
II	Variable stars with "young" O-rich circumstellar shells
IIIa	Variable stars with more evolved O-rich circumstellar shells
IIIb	Variable stars with thick O-rich circumstellar shells
IV	Variable stars with very thick O-rich circumstellar shells
V	Planetary nebulae and non- variable stars with very cool circumstellar shells
VIa	Variable stars with relatively cold dust at large distances; a significant part of the stars is carbon-rich
VIb	Variable stars with relatively hot dust close to the star and relatively cold dust at large distances; Some of the objects have proven to be O-rich
VII	Variable stars with more evolved C-rich circumstellar shells
VIII	Different sort of objects

Distribution of the detection velocities versus galactic longitude from NGU88

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Longitude-Velocity Map is taken form Dame, Hartmann & Thaddeus (2001)

Distribution of sources from NGU88 in (l,b) histograms

Display associated data

Group name	Line detection (H₂O, OH, SiO, CH₃OH (I), CH₃OH (II))
IRAS source	IRAS coordinates (RA, Dec)	IRAS flux density (F12,F25,F60,F100)
2MASS source	2MASS coordinates (RA, Dec)	2MASS magnituted (J,H,K)

Variable star	Variable star parameters	Star Formation Region name	Star Formation Region parameters
WISE source	WISE coordinates (RA, Dec)	WISE magnitudes (w1, w2, w3, w4)
Akari IRC source	Akari IRC coordinates (RA, Dec)	Akari IRC fluxes (S09, S18)
Akari FIS source	Akari FIS coordinates (RA, Dec)	Akari FIS fluxes (S65, S90, S140, S160)
Continuum	Continuum coordinates (RA, Dec)	Continuum parameters
Bolocam GPS	Bolocam coordinates (RA, Dec)	Bolocam parameters
Extended Green Objects	EGO coordinates (RA, Dec)	EGO parameters

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DSS (optical)	2MASS (JHK)	WISE (4-22 um)	IRAC (3-8 um)	GLIMPSE 360 (3.6-4.5 um)	PACS color (70-160 um)	SPIRE color (250-500 um)
AKARI color (60-160 um)	NVSS (1.4 GHz)	SDSS (optical+NIR)	Image size: arcsec (default is 120 arcsec)
			Image size: arcsec (default is 120 arcsec)

Position of H₂O maser detection

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)
UKIDSS K	2MASS K

select sio_data.ra_hms,sio_data.dec_dms,sio_data.source_name,sio_data.ra,sio_data.dec,sio_data.l,sio_data.b,sio_data.vlow,sio_data.vup,sio_data.vpeak,sio_data.vpeak_e,sio_data.vpeak2,sio_data.vpeak2_e,sio_data.dv,sio_data.other_name,sio_data.peak,sio_data.peak_e,sio_data.peak2,sio_data.peak2_e,sio_data.int,sio_data.int_e,sio_data.rms,sio_data.date,sio_data.date2,sio_data.telescope_ref,sio_data.units,sio_data.beam,sio_data.ref,sio_data.list_ref,sio_data.ascii,sio_data.image,sio_data.id,sio_data.line FROM sio_data   WHERE ref ilike 'NGU88' AND detected=true AND hide=false ORDER BY detected DESC,id