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[vsnet-newvar 1734] De-reddening of V-I Photometry for MisV1147
- Date: Wed, 11 Dec 2002 21:56:27 EST
- To: vsnet-campaign-unknown@ooruri.kusastro.kyoto-u.ac.jp, vsnet-newvar@ooruri.kusastro.kyoto-u.ac.jp
- From: DWest61506@aol.com
- Subject: [vsnet-newvar 1734] De-reddening of V-I Photometry for MisV1147
- Sender: owner-vsnet-newvar@ooruri.kusastro.kyoto-u.ac.jp
I have ran into a snag in my effort to de-redden Arne Henden's V-I photometry for MisV1147. If you remember, I was trying to calculate the spectral class of the object. To de-redden the photometry on of the quantities I need to know is E(V-I). To calculate E(V-I) I need to know the approximate distance. This area of the sky has a high interstellar extinction, that is, 2.6<Av<3.3 mag at 1 kpc according to Neckel and Klare, 1980, Aston. Astrophys. Suppl. Ser. 42:215-281. Doing a quick literature search in ADS didn't reveal a typical absolute magnitude for YSO's. I have found wide variation in the estimated luminosity values for the objects. Does anyone have a qualified guess as to what distance I should use in my de-reddening calculations?
Thanks,
Doug West
http://hometown.aol.com/dwest61506/index.html
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