New Observations and a Possible Detection of Parameter Variations in the Transits of Gliese 436b

Details New Observations and a Possible Detection of Parameter Variations in the Transits of Gliese 436b New Observations and a Possible Detection of Parameter Variations in the Transits of Gliese 436b

2008-09-09

arxiv.org/abs/0809.1664v2

Astronomy and Astrophysics

Astrophysics

6 pages, 3 figures, 2 tables, Accepted to ApJ Letters

Scientific paper

10.1086/595822

We present ground-based observations of the transiting Neptune-mass planet Gl 436b obtained with the 3.5-meter telescope at Apache Point Observatory and other supporting telescopes. Included in this is an observed transit in early 2005, over two years before the earliest reported transit detection. We have compiled all available transit data to date and perform a uniform modeling using the JKTEBOP code. We do not detect any transit timing variations of amplitude greater than ~1 minute over the ~3.3 year baseline. We do however find possible evidence for a self-consistent trend of increasing orbital inclination, transit width, and transit depth, which supports the supposition that Gl 436b is being perturbed by another planet of < 12 Earth Masses in a non-resonant orbit.

Affiliated with

Also associated with

No associations

Rating

New Observations and a Possible Detection of Parameter Variations in the Transits of Gliese 436b 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 New Observations and a Possible Detection of Parameter Variations in the Transits of Gliese 436b, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and New Observations and a Possible Detection of Parameter Variations in the Transits of Gliese 436b will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-160509