Slitless Spectroscopy Of GJ 1214b In K-band

Details Slitless Spectroscopy Of GJ 1214b In K-band Slitless Spectroscopy Of GJ 1214b In K-band

Sep 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ess.....2.2901t&link_type=abstract

American Astronomical Society, ESS meeting #2, #29.01

Physics

Optics

Scientific paper

Extreme in the sense that it is one of the only observable 'super-Earth' exoplanets, GJ 1214b has shown disparate evidence for an atmosphere composed primarily of H/He, and one having a significant H2O component. Recent observation and modelling efforts (Croll et al. 2011; Miller-Ricci Kempton et al. 2011; Crossfield et al. 2011) have suggested that the flat spectral signature in the optical and very-NIR (Bean et al. 2010) may indicate GJ 1214b's atmosphere is indeed water-rich, and/or that there may be a short-wavelength cloud layer blocking some of GJ 1214b's flux in these regions. This latter prediction is in conjunction with a more varying/peaked spectrum indicated by J- and K-band photometry (Croll et al. 2011). To help deduce the detailed shape and/or variability in the NIR spectrum of GJ 1214b, we present preliminary results of May 2010 observations at the MMT using the ARIES NIR spectrograph in K band. We used 'slitless-spectroscopy' at a resolution of 200 and the Adaptive Optics (AO) system as a guider to observe the primary transit of GJ 1214b. Using only simple detrending fits to remove airmass and instrumental signatures, we find agreement with previous single-point photometric K-band measurements, but also (may) see spectroscopic variation in eclipse depth across K-band ( 2-2.4 microns).

Affiliated with

Also associated with

No associations

Rating

Slitless Spectroscopy Of GJ 1214b In K-band 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 Slitless Spectroscopy Of GJ 1214b In K-band, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Slitless Spectroscopy Of GJ 1214b In K-band will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-833103