GALEX Projects

M31 Objects Observed by GALEX

Follow the links to look at preliminary light curves derived from GALEX observations for the following objects:

• Novae from Pietsch et al. (2007)
• Stars from Massey et al. (2006):
  • Luminous Blue Variables
  • Wolf-Rayet Stars
  • O-F Supergiant Stars
  • Red Supergiant Stars

Here is a CMD derived from the average magnitudes for the stars and the brightest magnitudes for the novae. This photometry is preliminary and the crowding issues vary substantially over the types. For example, WRs and O-F SGs tend to be in very crowded regions:

Three GALEX tiles were analyzed to derive the photometry:

Tile	Coords	Imno.	Date	UT
NGA_M31_F1	10.6542, 41.2228	0001	2003-09-05	20:21:02
NGA_M31_MOS0	10.1671, 40.8326	0001	2003-10-08	14:13:17
		0002	2003-10-08	15:51:57
		0003	2003-10-19	01:55:08
		0004	2004-09-27	04:51:03
		0005	2004-09-27	06:29:41
NGA_M31_MOS4	11.1931, 41.5439	0001	2003-10-09	20:21:02
		0002	2003-10-09	08:18:32
		0003	2003-10-19	00:07:15