Shock Wave in Kepler's Supernova Remnant

 Shock Wave in Kepler's Supernova Remnant

Detailed knots and filamentary ribbons of glowing gas are apparent in this Hubble Space Telescope image of Kepler's supernova remnant. This image was taken with Hubble's Advanced Camera for Surveys (ACS) in August 2003. Filters onboard Hubble isolate visible light emitted by hydrogen, nitrogen, and oxygen in the remnant and also let through starlight from foreground and background stars.

These images reveal where the supernova shock wave is slamming into dense regions of nearby gas. The bright glowing knots are dense clumps that form behind the outward moving shock wave. As the shock ploughs into material lost from the progenitor star after the initial supernova explosion, instabilities left in its wake cause the swept-up gas to fragment into clumps. The Hubble data also show thin filaments of gas. These filaments reveal where the shock wave is encountering lower-density, more uniform interstellar material.

Credits

NASA, ESA, and The Hubble Heritage Team (STScI/AURA);
Acknowledgment: R. Sankrit and W. Blair (Johns Hopkins University)

About The Object
Object Name Kepler's Supernova Remnant, SN 1604, V 843 Ophiuchi, G004.5+06.8
Object Description Supernova Remnant
R.A. Position 17h 30m 40.79s
Dec. Position -21° 29' 11.0"
Constellation Ophiuchus
Distance 13,000 light-years (4,000 parsecs)
About The Data
Data Description This image was created from Hubble observations from proposal : R. Sankrit and W. Blair (Johns Hopkins Univ.), L. Rudnick (U. Minnesota), T. DeLaney (U. Minnesota and Harvard-Smithsonian/Center for Astrophysics), I. Harrus (Goddard Space Flight Center).
Instrument HST>ACS/WFC and HST>WFPC2
Exposure Dates August 28-29, 2003 and May 26, 2004v, Exposure Time: 23,509 seconds (6.5 hours)
Filters F502N ([O III]), F550M (V), F658N (Halpha+[N II]), F660N ([N II]), and F673N ([S II])
About The Object
Object Name A name or catalog number that astronomers use to identify an astronomical object.
Object Description The type of astronomical object.
R.A. Position Right ascension – analogous to longitude – is one component of an object's position.
Dec. Position Declination – analogous to latitude – is one component of an object's position.
Constellation One of 88 recognized regions of the celestial sphere in which the object appears.
Distance The physical distance from Earth to the astronomical object. Distances within our solar system are usually measured in Astronomical Units (AU). Distances between stars are usually measured in light-years. Interstellar distances can also be measured in parsecs.
Dimensions The physical size of the object or the apparent angle it subtends on the sky.
About The Data
Data Description
  • Proposal: A description of the observations, their scientific justification, and the links to the data available in the science archive.
  • Science Team: The astronomers who planned the observations and analyzed the data. "PI" refers to the Principal Investigator.
Instrument The science instrument used to produce the data.
Exposure Dates The date(s) that the telescope made its observations and the total exposure time.
Filters The camera filters that were used in the science observations.
About The Image
Image Credit The primary individuals and institutions responsible for the content.
Publication Date The date and time the release content became public.
Color Info A brief description of the methods used to convert telescope data into the color image being presented.
Orientation The rotation of the image on the sky with respect to the north pole of the celestial sphere.