Early-A stars from IPHAS, and their distribution in and around the Cyg OB2 association


Stellar photometry derived from the INT/WFC Photometric Hα Survey of the Northern Galactic Plane (IPHAS) can be used to identify large, reliable samples of A0-A5 dwarfs. For every A star, so identified, it is also possible to derive individual reddening and distance estimates, under the assumption that most selected objects are on or near the main sequence… (More)


17 Figures and Tables