Westerlund 1

Number of stars per data source

	Reference  433 :   19 stars
	Reference 1007 :   11 stars
	Reference 1022 :   41 stars
	Reference 1023 :   10 stars

433: Westerlund B.E.; (1987) Astron. Astrophys. Suppl. 70, 131; Photometry and spectroscopy of stars in the region of a highly reddened cluster in Ara; 1987A&AS...70..131W
1007: Negueruela I., Clark J.S.; (2003) IAU Symp. 212, 531; The very rich massive post-main-sequence star population of the open cluster Westerlund 1; 2003IAUS..212..531N
1022: Clark J.S., Negueruela I., Crowther P.A., Goodwin S.P.; (2005) Astron. Astrophys. 434, 949; On the massive stellar population of the super star cluster Westerlund 1; 2005A&A...434..949C
1023: Negueruela I., Clark J.S.; (2005) Astron. Astrophys. 436, 541; Further Wolf-Rayet stars in the starburst cluster Westerlund 1; 2005A&A...436..541N