Finding the Lyman-Alpha Cloud around 51 Peg B with GHRS

Details Finding the Lyman-Alpha Cloud around 51 Peg B with GHRS Finding the Lyman-Alpha Cloud around 51 Peg B with GHRS

Jul 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995hst..prop.6343s&link_type=abstract

HST Proposal ID #6343

Astronomy and Astrophysics

Astronomy

Hst Proposal Id #6343 Cool Stars

Scientific paper

One of the most exciting recent developments in Astronomy has been thediscovery of radial velocity variations in the solar-type star 51 Pegwhich imply the existence of a Jupiter sized planet around it. Theorbit is astonishingly close to the star (0.05 AU) for a giant planet.Analysis shows, however, that the planet could retain its atmosphereeven so close. The chromospheric inactivity of the star, combined witha detectable rotational velocity, imply that the system is viewednearly edge on. Attempts to find a photometric eclipse have turned upnothing. The exosphere of the planet is subject to strong high energyfluxes from the star, making it likely that there is a neutral hydrogencorona around the planet. This might be quite extensive, depending onits magnetosphere. We propose to look for absorption of stellarLyman-alpha by the planetary corona, which would constitute hardphysical evidence that a body is really there. In particular, we willcompare the profile during and away from transit.

Affiliated with

Also associated with

No associations

Rating

Finding the Lyman-Alpha Cloud around 51 Peg B with GHRS 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 Finding the Lyman-Alpha Cloud around 51 Peg B with GHRS, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Finding the Lyman-Alpha Cloud around 51 Peg B with GHRS will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1172254