Display data from paper

Select data type:

NAK06 - SiO Masers in a Scutum Massive Star Cluster of Red Supergiants

Short title: Nakashima & Deguchi (2006)
Authors: Nakashima, Jun-ichi Deguchi, Shuji
Journal: The Astrophysical Journal, Volume 647, Issue 2, pp. L139-L142.
Bibcode:

Abstract
We have detected five objects toward a Scutum massive star cluster of red supergiants in the SiO J=1-0, v=1 or v=2 transitions. The radial velocity data indicate that four of the detections are cluster members and that the other, which is located close to the X-ray source AX 1838-0655, is a foreground object. The high velocity resolution of the maser lines provides a more accurate determination of the radial velocity (120 km s^-1) and velocity dispersion (~2 km s^-1) of the cluster and, hence, of the distance (6.5 kpc) and luminosities of the stars. We discuss the implications of these measurements in constraining the relationships between SiO masers and mass-loss rate and modeling the cluster age and mass.	Target sources: 2MASS

Abstract

We have detected five objects toward a Scutum massive star cluster of red supergiants in the SiO J=1-0, v=1 or v=2 transitions. The radial velocity data indicate that four of the detections are cluster members and that the other, which is located close to the X-ray source AX 1838-0655, is a foreground object. The high velocity resolution of the maser lines provides a more accurate determination of the radial velocity (120 km s^-1) and velocity dispersion (~2 km s^-1) of the cluster and, hence, of the distance (6.5 kpc) and luminosities of the stars. We discuss the implications of these measurements in constraining the relationships between SiO masers and mass-loss rate and modeling the cluster age and mass.

Target sources:
2MASS

Input tables: Table 1
Download as: Table (CSV) , Spectra (ASCII)
View as list of objects

Detection table from Nakashima & Deguchi (2006)

Export table to csv

Hide / Show individual components

ID	Obs. RA	Obs. Dec	l	b	Group id	Source name	Other name	Spectra	Line	V_range	V_peak	T_a	∫T_a dv	Telescope	RMS	Detection	Class	Dist. (parallax)
	(J2000)	(J2000)	(deg.)	(deg.)					SiO	(km/s)	(km/s)	(K)	(K*km/s)		(Jy)	Yes/No		(kpc)
1	18 37 56.3	-06 52 32.2	25.2777	-0.1474	G25.279-0.153	F01	J18375629-0652322	Spectra	43.1 GHz;	11.7*	115.0	0.316	2.11	NRO	0.076	-H₂O +OH +SiO	EVOLVED
2	18 37 55.3	-06 52 48.4	25.2717	-0.1457	G25.279-0.153	F02	J18375528-0652484	Spectra	43.1 GHz;	6.6*	120.0	0.394	2.518	NRO	0.070	-H₂O +OH +SiO	EVOLVED
3	18 37 50.9	-06 53 38.2	25.2511	-0.1359	G25.254-0.124	F04	J18375090-0653382	Spectra	43.1 GHz;	6.0*	121.5	0.336	1.387	NRO	0.057	-OH +SiO	EVOLVED
4	18 37 58.9	-06 52 32.1	25.2826	-0.1569	G25.279-0.153	F13	J18375890-0652321	Spectra	43.1 GHz;	14.1*	116.5	0.493	3.242	NRO	0.061	-H₂O +OH +SiO	EVOLVED
5	18 37 58.9	-06 52 32.1	25.2826	-0.1569	G25.279-0.153	F13	J18375890-0652321	Spectra	42.8 GHz;	4.2*	116.4	0.486	2.082	NRO	0.056	-H₂O +OH +SiO	EVOLVED
6	18 38 1.6	-06 55 23.6	25.2455	-0.1888	G25.245-0.189	X18	J18380162-0655235		43.1 GHz;		74.3	0.554	3.405	NRO	0.078	+SiO	EVOLVED
7	18 38 1.6	-06 55 23.6	25.2455	-0.1888	G25.245-0.189	X18	J18380162-0655235		42.8 GHz;		74.3	0.771	3.765	NRO	0.080	+SiO	EVOLVED

Non-detection table from Nakashima & Deguchi (2006)