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Topic: Space Telescope Imaging Spectrograph

	Space Telescope Imaging Spectrograph - Wikipedia, the free encyclopedia
		The Space Telescope Imaging Spectrograph (STIS) is a spectrograph installed on the Hubble Space Telescope, operating from 1997 to 2004.
		It made many important observations, including the first spectrograph of the atmosphere of an extrasolar planet, Osiris.
		The STIS was installed on Hubble during its second servicing mission in 1997 by Mark Lee and Steven Smith, replacing the High Resolution Spectrograph and the Faint Object Spectrograph.
	en.wikipedia.org /wiki/Space_Telescope_Imaging_Spectrograph (151 words)

	Aerospace Technology - Hubble Space Telescope
		HST is a 2.4m reflecting telescope which was launched into a low-Earth orbit (600km) by the crew of the space shuttle Discovery (STS-31) in 1990.
		The science operations and control of the telescope lies in the hands of the Space Telescope Science Institute (STScI) on the Johns Hopkins University Homewood Campus in Baltimore, Maryland.
		Hubble's Space Telescope Imaging Spectrograph (STIS), enables the telescope to separate the light entering the camera in order to analyse properties such as temperature, radial velocity, rotational velocity and magnetic fields, across a spectral range from the UV (115nm) through the visible red and the near-IR (1,000nm).
	www.aerospace-technology.com /projects/hubble (792 words)

	[No title]
		A spectrograph separates the light gathered by the telescope into its spectral components so that the composition, temperature, motion, and other chemical and physical properties of astronomical objects can be analyzed.
		HST is a 2.4-meter reflecting telescope which was deployed in low-Earth orbit by the crew of the Space Shuttle Discovery (STS-31) on April 25, 1990.
		Responsibility for conducting and coordinating HST science operations rests with the Space Telescope Science Institute (STScI) on the Johns Hopkins University Homewood Campus in Baltimore, MD. STScI is operated for NASA by the Association of Universities for Research in Astronomy, Inc. (AURA).
	science.ksc.nasa.gov /shuttle/missions/sts-82/sts-82-press-kit.txt (8301 words)

	Mysteries of Deep Space Essay - The Future of the Hubble Space Telescope
		Astronomers using the Hubble Space Telescope are at the dawn of a new era in exploring the universe.
		With the new Space Telescope Imaging Spectrograph the spectra of as many as 500 adjacent locations on the sky can be observed simultaneously.
		Previously, Hubble Telescope users had to make multiple successive observations of the spectra at different locations around a galaxy center in order to determine the rate at which the stars and gas are orbiting the center.
	www.pbs.org /deepspace/broadcast/future.html (730 words)

	:: NASA Quest > Archives :: (Site not responding. Last check: 2007-11-03)
		The Space Telescope Science Institute, on the campus of Johns Hopkins University in Baltimore, Maryland, was dedicated in 1983.
		The Hubble Space Telescope, with a resolving power calculated to be ten times better than any telescope on Earth, was poised to open a new era in astronomy.
		The Space Telescope Imaging Spectrograph (STIS) spans ultraviolet, visible, and near-infrared wavelengths.
	quest.arc.nasa.gov /hst/about/history.html (1898 words)

	The European Homepage For The NASA/ESA Hubble Space Telescope - STIS
		It combines a camera with a spectrograph, and covers a wide range of wavelengths from the near-infrared region into the ultraviolet.
		A spectrograph spreads out the light gathered by a telescope so that it can be analyzed to determine such properties of celestial objects as chemical composition and abundances, temperature, radial velocity, rotational velocity, and magnetic fields.
		Its spectrograph can be switched between two different modes of usage: 1.So-called "long slit spectroscopy" where spectra of many different points across an object are obtained simultaneously.
	www.spacetelescope.org /about/general/instruments/stis.html (206 words)

	Hubble Space Telescope Daily Report #3024 - 27 Dec 2001 \| SpaceRef Canada - Your Daily Source of Canadian Space News
		The Space Telescope Imaging Spectrograph (CCD and MA1) was used to obtain long-slit imaging ultraviolet spectra of Callisto, using the G140L grating, to study the interaction of the Jovian plasma environment with the tenuous carbon dioxide atmosphere of this icy satellite.
		The Space Telescope Imaging Spectrograph (MA1 and MA2) was used to perform the routine monitoring of the MAMA detector dark noise, and is the primary means of checking on health of the MAMA detectors systems through frequent monitoring of the background count rate.
		The Space Telescope Imaging Spectrograph (CCD) was used to observe the stellar orbital structure and the mass of the central fl hole in NGC 3379.
	www.spaceref.ca /news/viewsr.html?pid=4346 (3590 words)

	JPL News -- Final Death Throes of Nearby Star Witnessed First-Hand
		Based on results from a recent Hubble Space Telescope imaging survey of young planetary nebulae, he proposed that two-sided, or bipolar, high-speed jet-like outflows are the primary means of shaping these objects.
		Further support in favor of a companion-driven jet outflow comes from the scientists' observation that the jet fires in bursts: because the companion orbits the star in a periodic fashion, the accretion disc around it is expected to produce regular spurts of material rather than a steady stream.
		The Hubble Space Telescope is a project of international cooperation between NASA and the European Space Agency.
	www.jpl.nasa.gov /releases/2003/154.cfm (654 words)

	Hubble Space Telescope: News and Updates
		The spectrograph dissects the ring's light to tell scientists which elements are in the ring and helps paint a picture of the physics and stellar processes which created the ring.
		The Space Telescope Science Institute is operated by the Association of Universities for Research in Astronomy, Inc. (AURA), for NASA, under contract with the Goddard Space Flight Center.
		The Hubble Space Telescope is a project of international cooperation between NASA and the European Space Agency (ESA).
	www.thetech.org /exhibits/online/hubble/updates/mar2597-may1297.html (2332 words)

	The Hubble Space Telescope (Site not responding. Last check: 2007-11-03)
		The Hubble Space Telescope ten years after its launch, when it was repaired in Endeavour's cargo-bay (left) and then released on 25 December 1999.
		When conducting an observation, the space telescope is rotated into the proper orientation, then pointed to the star it is to view and locked in place, by the pointing control system.
		The imaging systems may be able to provide pictures of an accretion disk in nearby galaxies and HST spectrometers will enable us to measure the velocities of infalling gas thereby gauging the mass of suspected fl holes.
	www.sciencepresse.qc.ca /clafleur/The-HST.html (5023 words)

	Mysteries of Deep Space - About the Hubble
		Power and thermal constraints are satisfied when the telescope is oriented such that the Sun is in the half-plane defined by the +V1 axis and the positive V3 axis.
		The telescope does not generally observe targets within 50 degrees of the Sun, 15.5 degrees of any illuminated portion of the Earth, 7.6 degrees of the dark limb of the Earth, nor 9 degrees of the Moon.
		The HST observing schedule is constructed at STScI and forwarded to the Goddard Space Flight Center (GSFC) in Greenbelt, Maryland.
	www.pbs.org /deepspace/hubble/diagram.html (1385 words)

	Hubble Space Telescope Daily Report #2861 - 30 Apr 2001 \| SpaceRef - Space News as it Happens
		The Space Telescope Imaging Spectrograph (CCD) was used to measure the distortion of light bundles from distant galaxies that probe the statistical properties of the intervening inhomogeneous {dark} matter distribution.
		The Space Telescope Imaging Spectrograph (CCD) was used to increase the knowledge of the local space density of AGNs which is of fundamental importance to a number of astrophysical problems.
		The WF/PC-2 and the Space Telescope Imaging Spectrograph (MA1) were used to investigate the presence of extended ionized gas with LINER spectra in a large fraction {60-70%} of early-type galaxies.
	www.spaceref.com /news/viewsr.html?pid=2763 (2424 words)

	Hubble Space Telescope - Shuttle Service Mission II
		We're doing 4 space walks, and the first one is probably the one with the most pressure because it has 2, it has the highest priority task in it and probably the 3rd or 4th highest priority tasks according to the customer.
		Our major goal that day is to take out 2 scientific instruments that are in the Hubble space telescope that are working fine and to put brand new instruments in.
		Spectrographs take the light that is received from an object and break it out into its different components, much like a prism does that you'll hold up to the light.
	www.thetech.org /exhibits/online/hubble/mission/eva1.html (1646 words)

	Spaceflight Now \| Breaking News \| Hubble finds much of universe's missing hydrogen
		The Hubble Space Telescope Imaging Spectrograph found the spectral "fingerprints" of highly ionized intervening oxygen (which is a tracer of the hydrogen) superimposed on the quasar's light.
		Slicing across billions of light-years of space, the quasar's brilliant beam penetrated at least four separate filaments of the invisible hydrogen laced with the telltale oxygen.
		The Space Telescope Imaging Spectrograph aboard NASA's Hubble Space Telescope decoded the quasar's light to find the spectral "fingerprints" of highly ionized (energized) oxygen, which had mixed with invisible clouds of hydrogen in intergalactic space.
	spaceflightnow.com /news/n0005/04hubble (1011 words)

	HoustonChronicle.com - Space Central
		The 32,000-pound scientific research lab was the first International Space Station (ISS) pressurized element to spend seven days in a renovated vacuum chamber last used when Americans walked on the moon.
		There is space for 24 racks inside the module - 13 will be dedicated to scientific research and 11 will provide cooling water, power and temperature and humidity control, as well revitalization to remove carbon dioxide and replenish oxygen.
		The purpose of these observations is to acquire STIS low-resolution ultraviolet spectra of early B-supergiants in galaxies M31 and M33 to determine the terminal velocities of their stellar winds.
	www.chron.com /content/interactive/space/briefs/briefs.html (2844 words)

	Satellites - Space Telescope Imaging Spectrograph (Site not responding. Last check: 2007-11-03)
		A spectrograph spreads out the light gathered by a telescope so that it can be analyzed in order to find out many different things about celestial objects.
		The Space Telescope Imaging Spectrograph (STIS) can study objects across a spectral range from UV light (115 nanometers) through the visible red and the near-infrared light (1000 nanometers).
		The colourful zigzag is the signature of a fl hole suspected to exist in the M84 galaxy.
	collections.ic.gc.ca /satellites/english/function/astronom/space.html (218 words)

	hst facts-stis.txt
		For example, a spectrograph can reveal the presence of monster fl holes at the centers of galaxies by showing how rapidly stars and gas are moving around a galactic nucleus.
		STIS is a two-dimensional imaging spectrograph that spans ultraviolet, visible, and near-infrared wavelengths.
		A spectrograph is an instrument that uses optical elements called gratings or prisms to separate the light gathered by the telescope into its component colors.
	www.gsfc.nasa.gov /gsfc/service/gallery/fact_sheets/spacesci/hst-stis.htm (874 words)

	Instrument fails on Hubble Space Telescope - Space News - MSNBC.com
		This picture of the Hubble Space Telescope was taken in February 1997, during the shuttle mission that featured the installation of the Space Telescope Imaging Spectrograph.
		The instrument — called the Space Telescope Imaging Spectrograph, or STIS —was installed during the second Hubble servicing mission in 1997 and was designed to operate for five years.
		The space agency had decided to discontinue servicing of the telescope, due to safety concerns raised by the investigation into last year's Columbia tragedy.
	msnbc.msn.com /id/5627619 (668 words)

	IACS
		Bruhweiler, Miskey, and Smith Neubig continue to use Hubble Space Telescope spectra obtained with the GHRS and STIS to study the effects of metallicity on properties of massive stars and starburst activity in nearby galaxies.
		Also, Bruhweiler and Boggess plan to use a significant portion of their remaining guaranteed observing time associated with The Space Telescope Imaging Spectrograph aboard the HST to probe active galactic nuclei and starburst galaxies.
		Crenshaw and Kraemer have obtained the first observations of a Seyfert galaxy with the echelle gratings on the Space Telescope Imaging Spectrograph (STIS).
	iacs.cua.edu /exgalr.cfm (1480 words)

	EUD: Exo-Planets & Stellar Astrophysics Laboratory
		Goddard's primary role is to build the telescopes for TPF-C and TPF-I. In addition, scientists in the Exoplanet Lab are studying a number of technologies relevant to TPF (masks, visible nulling coronagraphy, interferometry, mirror coatings, and spectrographs).
		Its spectral imaging capability is designed to enable an improved understanding of: 1) Solar and Stellar Magnetic Activity and Its Impact on Space Weather, Planetary Climates, and Life and 2) Magnetic Processes, the Origin and Evolution of Structure, and the Transport of Matter Throughout the Universe.
		WFC3 is planned for installation on the Hubble Space Telescope in Servicing Mission 4 in 2008, subject to a successful return to flight of the Space Shuttle.
	universe.gsfc.nasa.gov /exoplanets_stars/programs.html (1545 words)

	APOD: February 21, 1997 - New Eyes for the Hubble Space Telescope (Site not responding. Last check: 2007-11-03)
		Every few years, the telescope is visited by a Space Shuttle to allow astronauts to switch old instruments for new.
		This time, the Goddard High Resolution Spectrograph and Faint Object Spectrograph were replaced by the Near Infrared Camera and Multi-Object Spectrometer and the Space Telescope Imaging Spectrograph.
		The Hubble Space Telescope can take clearer pictures than ground based telescopes because its images are not blurred by the Earth's atmosphere.
	antwrp.gsfc.nasa.gov /apod/ap970221.html (167 words)

	New Scientist SPACE - Breaking News - Shelved instrument could restore Hubble's UV vision (Site not responding. Last check: 2007-11-03)
		An instrument that could replace key functions of a recently failed spectrograph on the Hubble Space Telescope is already built and sitting on the ground.
		Completed in 2003, the Cosmic Origins Spectrograph was to be installed on the shuttle service mission to Hubble that NASA Administrator Sean O'Keefe controversially cancelled in January.
		The Cosmic Origins Spectrograph was designed specifically for ultraviolet spectroscopy, in order to study the large-scale structure of the universe, galaxy formation, and the births of stars and planetary systems.
	www.newscientistspace.com /article.ns?id=dn6260 (539 words)

	Space Telescope Imaging Spectrograph - TheBestLinks.com - STIS, August 3, Extrasolar planet, Science, ...
		Space Telescope Imaging Spectrograph - TheBestLinks.com - STIS, August 3, Extrasolar planet, Science,...
		STIS, Space Telescope Imaging Spectrograph, August 3, Extrasolar planet...
		The STIS was installed on Hubble during its second servicing mission in 1997, replacing the High Resolution Spectrograph and the Faint Object Spectrograph.
	www.thebestlinks.com /STIS.html (145 words)

	Hubble Space Telescope (HST)
		An orbiting observatory built and operated jointly by NASA and the European Space Agency which is equipped with a main mirror 2.4 meters (94.5 inches) in diameter.
		Science operations are conducted from the Space Telescope Science Institute (STScI) in Baltimore, Maryland.
		Following upgrades and repairs since its launch on Apr. 25, 1990, the main science instruments attached to the telescope are Wide-Field and Planetary Camera 2 (WFPC-2), the Near Infrared Camera and Multi-Object Spectrometer (NICMOS), the Space Telescope Imaging Spectrograph (STIS), and, installed in 2002, the Advanced Camera for Surveys (ACS).
	www.daviddarling.info /encyclopedia/H/HST.html (293 words)

	NASA - Hubble Survey Finds Missing Link in Planet Formation
		Scientists using the Hubble Space Telescope have observed the first part of this key phase in planet formation, where the disk of dust and gas surrounding a newborn star becomes flatter and denser, allowing matter in the disk to clump together into planetary building blocks.
		The survey, "The Space Telescope Imaging Spectrograph Coronagraphic Survey of Pre-Main Sequence Stars," observed disks of dust and gas around relatively young stars, those with approximate ages of less than ten million years (lifetimes of all but the most massive stars are measured in billions of years).
		The researchers caution that certain disks in the survey may not be truly dark, but might instead be so small that the coronagraphic wedge in the imaging spectrograph instrument, which blocks direct light from the target star so its much dimmer disk can be seen, simply blocks the disks from view.
	www.nasa.gov /vision/universe/newworlds/0112_missing_link.html (1687 words)

	FastFactsM84Teays.html
		The Hubble Space Telescope Imaging Spectrograph (STIS) observed the central part (the nucleus) of the galaxy M84 (also known as NGC 4374 and 3C272.1).
		Its ability to capture spectrographic data at a wide range of wavelengths, across a swath of sky (the slit is 52 arcseconds long), means that it can acquire large amounts of information about extended objects in a single exposure.
		The Faint Object Spectrograph had to take a separate exposure at each position on a galaxy in order to collect the same information that STIS acquires in a single exposure.
	www.howard.k12.md.us /white/FastFactsM84Teays.html (737 words)

	Faint Object Spectrograph - Wikipedia, the free encyclopedia
		The Faint Object Spectrograph (FOS) was a spectrograph installed on the Hubble Space Telescope.
		In 1997 it was replaced by the Space Telescope Imaging Spectrograph.
		This page was last modified 01:32, 10 July 2005.
	en.wikipedia.org /wiki/Faint_Object_Spectrograph (82 words)

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