Infrared photometry and imaging of P Cygni

Details Infrared photometry and imaging of P Cygni Infrared photometry and imaging of P Cygni

Jun 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aspc..233...55s&link_type=abstract

P Cygni 2000: 400 Years of Progress, ASP Conference Proceeding Vol. 233, Edited by M. de Groot and C. Sterken, San Francisco: As

Astronomy and Astrophysics

Astronomy

1

Scientific paper

We present new photometric and imaging observations of P Cygni at infrared wavelengths. The photometry shows little or no variability over the last 30 years at near IR wavelengths, but there may be some significant variability at thermal-IR wavelengths - probably due to density variations in the stellar wind, and not necessarily indicative of long-term variability. Near-IR imaging in hydrogen emission lines reveals some extended structure out to a few arcseconds from the star, possibly elongated along a position angle of ~115 degrees.

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