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Optical Images of an Exosolar Planet 25 Light-Years from Earth
Optical observations of an exoplanet candidate, Fomalhaut b, show that the planet's mass is at most three times that of Jupiter; a higher mass would lead to gravitational disruption of the belt, matching predictions of its location.
20 years of Hubble Space Telescope optical modeling using Tiny Tim
ABSTRACT Point spread function (PSF) models are critical to Hubble Space Te lescope (HST) data analysis. Astronomers unfamiliar with optical simulation techniques need access to PSF models that
Hubble Space Telescope Observations of the Disk and Jet of HH 30
HH 30 in Taurus has been imaged with the Hubble Space Telescope WFPC2. The images show in reflected light a flared disk with a radius of about 250 AU that obscures the protostar. The disk resembles
WFPC2 Studies of the Crab Nebula. I. HST and ROSAT Imaging of the Synchrotron Nebula
We present images of the Crab synchrotron nebula obtained with the Wide Field and Planetary Camera 2 (WFPC2) on board the Hubble Space Telescope. These data are compared with ROSAT HRI images, and
An Edge-on Circumstellar Disk in the Young Binary System HK Tauri
Hubble Space Telescope (HST) images of HK Tauri reveal that the companion star in this 24 (340 AU) pre-main-sequence binary system is an entirely nebulous object at visual wavelengths. HK Tau/c
Hubble Space Telescope Advanced Camera for Surveys Coronagraphic Imaging of the AU Microscopii Debris Disk
We present Hubble Space Telescope Advanced Camera for Surveys multicolor coronagraphic images of the recently discovered edge-on debris disk around the nearby (� 10 pc) M dwarf AU Microscopii. The
The Tiny Tim User’s Guide
Elliptical Gaussian jitter was added to support modeling the impact of two-gyro guiding. General Some minor bug fixes have been made. The FITS image output routine now creates a more true
Hubble Space Telescope ACS Multiband Coronagraphic Imaging of the Debris Disk around β Pictoris
We present F435W (B), F606W (broad V), and F814W (broad I) coronagraphic images of the debris disk around β Pictoris obtained with the Hubble Space Telescope's Advanced Camera for Surveys. These
Hubble space telescope observations of the SN 1987A triple ring nebula
We have observed SN 1987A with the optically corrected WFPC2 on the Hubble Space Telescope both in emission lines and in the UV and optical continuum. The previously observed outer nebular structure
Probing dust grain evolution in IM Lupi's circumstellar disc. Multi-wavelength observations and mo
Aims. We present a panchromatic study, involving a multiple technique approach, of the circumstellar disc surrounding the T Tauri star IM Lupi (Sz 82). Methods. We have undertaken a comprehensive