Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apjs...62..839w&link_type=abstract
Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 62, Dec. 1986, p. 839-852.
Astronomy and Astrophysics
Astronomy
49
Astronomical Photometry, Infrared Sources (Astronomy), Reflection Nebulae, B Stars, Brightness, Charge Coupled Devices, Radiative Transfer
Scientific paper
Surface brightness measurements in the B, V, R, and I photometric bands are presented for 14 reflection nebulae. The analysis of nebula-star color differences leads to the conclusion that excess emission in the I band beyond that expected from scattering is a common phenomenon among reflection nebulae illuminated by B stars. An ultraviolet-powered fluorescence mechanism is suggested. Both the absolute and the relative V surface brightnesses of the nebulae in the sample are analyzed. The data can be explained, if the nebulae arise in moderately dense interstellar clouds with illuminating stars embedded at an optical depth level of order unity and with dust of high albedo and with a strongly forward-directed phase function. It is concluded that bright reflection nebulae must arise under almost optimal scattering conditions, which apparently are found when newly formed low-mass star clusters are still embedded in the material from which they originated.
Schild Rudolph E.
Witt Adolf N.
No associations
LandOfFree
CCD surface photometry of bright reflection nebulae 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 CCD surface photometry of bright reflection nebulae, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and CCD surface photometry of bright reflection nebulae will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1121682