HST NICMOS Images of Io in Jupiter's Shadow

Details HST NICMOS Images of Io in Jupiter's Shadow HST NICMOS Images of Io in Jupiter's Shadow

Sep 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998dps....30.5402g&link_type=abstract

American Astronomical Society, DPS meeting #30, #54.02; Bulletin of the American Astronomical Society, Vol. 30, p.1120

Astronomy and Astrophysics

Astronomy

2

Scientific paper

The image on the left is an HST NICMOS image acquired while Io was in Jupiter's shadow on 7/19/98 at 14:44 UT. This 224 second exposure (NIC1, F145M filter, 0.043 arcseconds/pixel, Io diameter 1.144 arcseconds) of Io's Jupiter-facing hemisphere shows thermal emission from numerous hot spots. Each discreet bright spot is an active volcano on Io. The image on the right is a Voyager-based map of Io projected at the same scale and orientation. North on Io is 47(deg) clockwise from the vertical in each image. The dotted circle in the NICMOS image shows the outline of Io's disk when the brightest source is matched with the known eruption at Loki Patera. The bright and double source at the upper left of the image is in the vicinity of Kanehekili. These images cover the opposite hemisphere of Io than is best seen during many of the Galileo encounters. The full data set includes 2mu m polarimetry to look for compositional heterogeneity among the hot spots (HST Program 7319). Latitude and longitude, temperature and area determined from the 1.45 and 2.0mu m radiometry, and preliminary results on the index of refraction for each separable source will be the focus of this presentation.

Affiliated with

Also associated with

No associations

Rating

HST NICMOS Images of Io in Jupiter's Shadow 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 HST NICMOS Images of Io in Jupiter's Shadow, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and HST NICMOS Images of Io in Jupiter's Shadow will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-816068