Visual and Infrared Extinction from Cepheid Observations

Details Visual and Infrared Extinction from Cepheid Observations Visual and Infrared Extinction from Cepheid Observations

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.263..921l&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Vol. 263, NO.4/AUG15, P. 921, 1993

Astronomy and Astrophysics

Astronomy

61

Scientific paper

Accurate visual and infrared photometry of Cepheids in the Galaxy and the Magellanic Clouds is used to determine the visual and infrared extinction laws. The infrared reddening law is derived for the standard system defined by Carter. Two different techniques are used to determine the value of R = A_V_/E(B - V). Both give consistent results with a weighted mean of R_0_ = 3.06 +/- 0.09 at (B - V)_0_ = 0, given the assumption that A_V_/E(V - K) = 1.1 (Whittet & van Breda). The derived infrared colour excess ratios are E(H-K)/E(B-V) = 0.171+/-0.007 and E(J-H)/E(B-V) = 0.314+/-0.020 for (B-V)_0_ = 0 in the limit E(B-V) goes to zero, implying that E(J-H)/E(H-K)= 1.83 +/- 0.14. The infrared extinction coefficients derived are A_J_/E(B-V) = 0.764, A_H_/E(B-V) = 0.450 and A_K_/E(B-V) = 0.279.

Affiliated with

Also associated with

No associations

Rating

Visual and Infrared Extinction from Cepheid Observations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Visual and Infrared Extinction from Cepheid Observations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Visual and Infrared Extinction from Cepheid Observations will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1494061