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These RXTE Guest Observer Facility web pages are not actively maintained, but are kept online as a legacy resource. For up-to-date information on publications using RXTE data, please refer to the HEASARC RXTE Bibliography form.

RXTE Science Highlights RXTE

Below are links to press releases and feature articles about RXTE discoveries. You may also be interested in:

  • Multimedia - videos and movies about RXTE's discoveries and launch.
  • RXTE Results - scientific publications and presentations about RXTE research.

RXTE Detects "Heartbeat" of Smallest Black Hole Candidate December 21, 2011
An international team of astronomers has identified a candidate for the smallest-known black hole using data from RXTE.
[Goddard Media Studios Article]
Artist's rendition black hole with disk of matter stripped from a companion star.
Eclipsing Pulsar Promises Clues to Crushed Matter August 17, 2010
Astronomers using RXTE have found the first fast X-ray pulsar to be eclipsed by its companion star.
[NASA Feature Article]
Artist rendition of J1749
RXTE Homes in on a Black Hole's Jets July 1, 2010
RXTE discovers X-rays from black holes' jets outshine the rest of the black hole system.
[NASA Feature Article]
The 2000 Outburst of XTEJ1550-564
RXTE Helps Suzaku catch Retreat of a Back Hole's Disk December 10, 2009
Researchers used Japan's Suzaku and NASA's RXTE satellites to catch a critical change in the structure of one of our galaxy's most active black-hole binaries.
[NASA Feature Article]
Artist's illustration of the binary system GX 339-4, credit: ESO/L. Calcada
NASA Telescopes Explore a Blazar March 18, 2009
Fermi, HESS, RXTE, and Swift team up for unprecedented simultaneous observations of an active galaxy.
[NASA Feature Article]
In the heart of an active galaxy, matter falling into a supermassive black hole
somehow creates jets of particles traveling near the speed of light.
Top High-Energy Astronomy Prize Awarded to Three RXTE Researchers January 2009
Three RXTE researchers share the Bruno Rossi prize for their measurements of the masses of Galactic black holes.
[Yale University Press Release] [Harvard-Smithsonian Center for Astrophysics News Feature}
Bruno Rossi
Two Black Holes Teach Astronomers a Lesson October 15, 2008
RXTE coordinates with ground-based telescopes to reveal secrets of "microquasar" black holes.
[NASA Feature Article]
GX 339-4, illustrated here, is a typical microquasar. A black hole orbits an
evolved star, which donates matter to it.
RXTE Finds Smallest Known Black Hole April 1, 2008
Nikolai Shaposhnikov and Lev Titarchuk of NASA's Goddard Space Flight Center used RXTE to find a black hole only 15 miles in diameter. It's the smallest known black hole, and may confirm theoretical predictions of how small black holes can get.
[NASA Press Release] [NASA Feature Article]
artist's depiction of binary system XTE J1650-500 - the small black hole is in the
center of the orange accretion disk in the foreground; the giant blue-white companion star in the
background loses material to the black hole, creating the accretion disk
Powerful Explosions Suggest Neutron Star Missing Link February 21, 2008
Researcher Fotis Gavriil used RXTE to make an incredible discovery: "We are watching one type of neutron star literally change into another right before our very eyes. This is a long-sought missing link between different types of pulsars."
[NASA Feature Article]
artist rendering of a magnetar - the wispy filaments depict the intense magentic field
surrounding the magnetar
NASA Astronomers Find Bizarre Planet-Mass Object Orbiting Neutron Star September 12, 2007
Using NASA's Swift and RXTE satellites, astronomers find not only a rare millisecond pulsar but a surprising planetary-sized object in orbit around it.
[NASA Feature Article] [NASA Press Release]
Artist's concept of strange planet-mass object orbiting a
neutron star
No Matter their size Black Holes 'Feed' in the Same Way December 7, 2006
Researchers use RXTE to reveal that black holes the size of stars and the supermassive black holes at the hearts of galaxies have some surprising similarities.
[University of Southampton Press Release]
artist's concept of an Active Galactic Nucleus
Spinning Black Hole Pushes the Limit November 20, 2006
RXTE researchers measure the spin of black holes, and find one spinning over 950 times a second - close to the theoretical limit, and near the speed of light.
[Harvard-Smithsonian Center for Astrophysics Press Release] [NASA Feature Article]
computer-drawn picture of a black hole with accretion disk and jets
Scientists Predict Quakes on Pulsars June 5, 2006
Using RXTE, astronomers discover a "remarkably simple" pattern that allows them to predict when a pulsar will undergo an explosive "starquake."
[Press Release] [Computer Animation]
artist's conception of a pulsar undergoing a starquake
NASA Sees Hidden Structure of Neutron Star in Starquake April 24, 2006
[Press Release]
New Map of Milky Way Reveals Millions of Unseen Objects February 26, 2006
RXTE makes an "X-ray map" of the Milky Way, revealing that the so-called galactic X-ray background is made up of millions of previously unknown objects.
[NASA Feature] [Learning Center]
COBE map of galactic center with contours of RXTE-detected X-ray
emission overlayed
Top High-Energy Astronomy Prize Awarded For Clocking Pulsars January 18, 2006
Three RXTE researchers received the 2006 Bruno Rossi prize for their pioneering research into millisecond pulsars and the star systems that produce them.
[NASA Press Release]
Bruno Rossi
Scientists Find Black Hole's Point of No Return January 9, 2006
[Press Release]
artist's concept of accretion disk around a black hole
Scientists Detect Indentation in Space-Time from Spinning Black Hole January 9, 2006
[Press Release] [MIT article and images]
artist's conception of a spacetime around a spinning black hole
A Dying Star Reveals More Evidence For A New Kind Of Black Hole January 5, 2006 RXTE researchers find a theorized "in-between" category of black hole that has eluded and frustrated scientists for more than a decade.
[NASA Press Release] [NASA Feature Article, with images]
Chandra image showing black hole activity
Researchers Discover Star Orbiting A 'Medium-Sized' Black Hole January 5, 2006
[Press Release]
artist's concept of a black hole with surrounding matter
NASA's Rossi X-ray Timing Explorer Marks 10 Years in Space January 2006
Designed for a two-year primary mission and a five year extension, NASA's RXTE satellite exceeds expectations and is still making amazing discoveries after 10 years in space. [Learning Center]
artist's concept of RXTE in space
Star Eats Companion September 6, 2005
NASA's RXTE and ESA's Integral satellite catch a fast-spinning pulsar devouring its companion star.
[Press Release] [ESA Article with images and animation]
artist's impression of a pulsar 'eating' a companion star, 
courtesy ESA
Three Satellites Needed To Bring Out 'Shy Star' July 13, 2005
RXTE joins two other telescopes to uncover a rare type of neutron star.
[Press Release] [Images and further information] [Learning Center]
computer rendering of a flare from the 'shy' neutron star
Biggest Star Quake In Universe May Reveal Inside of a Neutron Star July 12, 2005
RXTE provides a detailed look at an unprecedented neutron star explosion that may finally illuminate the mysterious interior of neutron stars.
[Press Release] [Images and Animation] [Sci/Tech Audiences]
computer graphic of neutron star with field lines visible
Surf's Up: Matter Rides on Wave of Spacetime Around Black Hole January 10, 2005
RXTE researchers find evidence of hot gas riding a "ripple in spacetime" around a black hole.
[Press Release] [Images and Animation] [NASA Feature Article]
artist's conception of a galactic black hole being orbited by a
ripple in spacetime
Scientists Gain Glimpse of Bizarre Matter in a Neutron Star September 8, 2004
Using RXTE, scientists have obtained their best measurement yet of the size and contents of a neutron star.
[NASA Press Release] [Images and Animation] [Learning Center]
artist's concept of a neutron star pulling matter from a companion
Scientists Watch "Movie" of Neutron Star Explosion in Real-Time February 23, 2004
RXTE observations of a superburst halfway across the galaxy provide scientists with their first-ever look at the moment-to-moment changes the burst inflicted on the nearby accretion disk.
[NASA Press Release] [NASA Feature Article, with images and animation] [Sci/Tech Audience]
computer simulation of a superburst explosion
Neutron Star, Turning Into Rare Ultra-Magnetic Object, Reveals Family Tree January 6, 2004
RXTE researchers find evidence for the first time of a neutron star transforming into a magnetar.
[NASA Press Release] [Learning Center]
artist's concept of a magnetar
Einstein's Gravitational Waves May Set Speed Limit for Pulsar Spin July 2, 2003
RXTE observations confirm a predicted limit to how fast a pulsar can spin.
[NASA Press Release] [Learning Center] [NASA Feature, with images and animation]
computer simulation of matter falling into a pulsar
New Class of Hot-Tempered Black Holes Bucks Trends March 24, 2003
RXTE and XMM-Newton satellites reveal new class of black holes.
[NASA Press Release]
black hole
Black Holes Really Are Holes, Say Astronomers March 31, 2003
[Press Release]
artist's impression of a typical blackhole
Top High-Energy Astronomy Prize Awarded for Ultra-Magnetic Star Discovery January 15, 2003
RXTE researcher Chryssa Kouveliotou shares the 2003 Bruno Rossi prize for confirming the existance of magnetars, previously theoretical objects now found by RXTE.
[NASA Press Release]
Bruno Rossi
Famed Eta Carinae, Awash in X-rays, might be Two Stars, Not One January 7, 2003
RXTE data shows that the famous, energetic star cycles in brightness exactly as expected if it were a binary system.
[NASA Press Release] [Learning Center] [Images at all wavelengths]
Hubble image of Eta Carinae
Scientists Measure the Most Powerful Magnet Known November 4, 2002 [Press Release] [NASA Feature Article with images and animation]

The Nature of Anomalous X-ray Pulsars September 12, 2002 [Abstract of Paper] [NASA Press Release]
artist's concept of a magnetar
Going, Going, Almost Gone:Pulsar Whittles Away Stellar Companion to Planet-Size May 23, 2002 [NASA Press Release] [Neutron Star Animation] [Imagine the Universe] black hole
Scientists Catch Speeding Neutron Star With "Radar Gun" Technique, Confirm Theory April 22, 2002 [NASA Press Release] [Neutron Star Animation] [Imagine the Universe] black hole
Vampire Pulsar Sucks Companion Star Down to Planet-Size April 22, 2002 [NASA Press Release] [Neutron Star Animation] [Imagine the Universe] black hole
Scientists Find "Local" Black Hole Pumps Energy As It Spins April 22, 2002 [NASA Press Release] [Black Hole Animation] [Imagine the Universe] black hole
Prime View of Neighbouring Galaxy Yields Pulsar Bonanza, Seven in One Blow January 9, 2002 [NASA Press Release] [Images] [Imagine the Universe] black hole
"Big Glitcher" Pulsar Reveals Long-Hidden, Exotic Interior January 7, 2002 [NASA Press Release] [Imagine the Universe] black hole
A Method Uncovered in the Madness of Black Holes and Neutron Stars June 5, 2001 [NASA Press Release] [Images] black hole
Light From 30 Miles Above a Black Hole Reveals Spinning April 2001 [NASA Press Release] [images] [Imagine the Universe] black hole
Astronomers Find the Youngest Pulsar Yet in the Heart of an Exploded Star August 2000 [NASA Press Release] [The Goddard News]
First Emission Line from "Gamma-Ray Repeater" Star Reveals Clues June 2000 [NASA Press Release] [The "Missing Pulsar" page] [Spaceflight Now article] Gamma Ray Repeater
Amateur and Professional Astronomers Team Up June 2000 [NASA Press Release] [American Association of Variable Star Observers] variable star
Waves Said To Churn Across a Sea of Nuclear Fuel on Star March 2000 [NASA Press Release] waves temperature
A New Spin on a Strange Class of Pulsars March 2000 [NASA Press Release] neutron star
Powerful Jets of Particles Stretch and Distort Supernova Remnant March 2000
[NASA Press Release]
supernova remnant
Burning Neutron Stars March 2000
and Other Extreme Phenomena to Highlight NASA X-ray Astronomy Meeting [NASA Press Release]
waves density
The All-Sky Monitor (ASM) Movie January 2000
MIT releases the All-Sky Monitors' view of the X-Ray Sky [Learning Center] [MIT's download site]
asm video
Gamma Rays light up the sky December 1999
XTE moves into action locating GRB 991216 outburst! [Learning Center] [Space Science News]
RXTE Captures the Ongoing Light Show at the Galactic Center June 1999
RXTE researchers create a "movie" showing stellar explosions at the galactic center. [Learning Center] [NASA Press Release]
Galatic Light Show
Top High-Energy Astronomy Prize Awarded for the Development of RXTE and Resulting Discoveries January 1999
The 1999 Bruno Rossi Prize (the top prize in High Energy Astrophysics research) went to RXTE leads Jean Swank and Hale Bradt for their key roles in the development of RXTE and the science it produced.
[NASA Press Release]
NGC 3516: Stretching the limits of our knowledge of the variability of AGN. 1999
R. Edelson uses RXTE to probe the variability of a bright AGN on small and large time scales. [General Audience] [Sci/Tech Audience]
plot of RXTE data
Long Term Variability in the Enigmatic Star Eta Carina Dec. 1998
Mike Corcoran and co-workers continue their long term monitoring of this extremely massive star, which reveals tantalizing clues about its nature. [Sci/Tech Audiences]
Star Eta carina
Supermassive Black Hole November 1998
Has X-ray Patterns Similar to Smaller Black Hole -- May Determine Black Hole Mass [NASA Press Release] [images]
Black Hole
Soft Gamma Repeater found to be an X-ray Pulsar June 1998
Pulsation period and derivative suggest spindown due to strong magnetic field. [General Audience] [Sci/Tech Audience]
X-ray Pulsar
The Missing Link is Found - Millisecond Pulsar Discovered April 1998
The first confirmed millisecond pulsar to be found in an accreting binary star system. [Short NASA Press Release] [CNN News Story] [General Audience] [Sci/Tech Audience]
millisecond pulsar
Pulsars in the SMC: near SMC X-3. March 1998
Jim Lochner and RXTE staff memebers uncover a plethora of transient pulsars.
[General Audience] [Sci/Tech Audience]
Pulsars in the SMC
Fast Young Rotation Powered Pulsar Detected in the LMC Feb. 1998
16ms Pulsar discovered in SNR N157B. ASCA data assist to constrain the age of the pulsar and its initial spin period. [General Audience] [Sci/Tech Audience]
LMC image
Frame Dragging Nov. 1997
[Sci/Tech Audience] [General Audience]
X-ray Binary
Simultaneous UV/X-ray monitoring of AGN 1997
Paul Nandra compares the results of a month-long RXTE monitoring campaign with simultaneous IUE observations, with consequences for models of the continuum emission of AGN. [Sci/Tech Audiences]
Fastest Periodic Signals in Astronomy. 1996
RXTE uses its high timing capability to study kilohertz quasiperiodic oscillations (QPOs), and learn more about the properties of neutron stars. [General Audiences] [Sci/Tech Audiences]
small khz QPO
RXTE Observes Outbursts in Two Dwarf Novae. 1996
RXTE is utilized, along with optical and extreme-ultraviolet observations, to monitor outbursts in the two brightest dwarf novae in the sky - SS Cygni and U Geminorum. [Sci/Tech Audiences]
Two Dwarf Novae Light Curve
Caught in the Act! 1996
Coel Hellier and coworkers catch a cataclysmic variable in outburst. [Sci/Tech Audiences]
cataclysmic variable outburst
Public Outbursts June 1996
Public Observations of the Bursting Pulsar GRO J1744-28 reveal an object that exibits a variety of time variability. [General Audience] [Sci/Tech Audience]
Pulsar light curve

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This page is maintained by the RXTE GOF and was last modified on Wednesday, 24-Aug-2022 11:10:28 EDT.