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APOD: 2005 December 26 - SN 1006: Supernova Remnant in X Rays   (Site not responding. Last check: 2007-10-14) One thousand years ago, in the year 1006, a new star was recorded in the sky that today we know was really an existing star exploding. Even today, not everything about the SN 1006 is understood, for example why particle shocks that produce the bright blue filaments are only visible at some locations. SN 1006 is thought to have once been a antwrp.gsfc.nasa.gov /apod/ap051226.html   (195 words)

Supernova K-12 Background Information for Lesson Plans & Science Fair Projects A few supernovae, such as SN 1987K and 1993J, appear to change types: they show lines of hydrogen at early times, but, over a period of weeks to months, become dominated by lines of helium. SN 1994D in the NGC 4526 galaxy (bright spot on the lower left). If only one supernova is observed in a given year (as with SN 1006), no letter suffix is added to the name. www.juliantrubin.com /encyclopedia/astronomy/supernova.html   (3842 words)

Image of the Day : Supernova Revisited The explosion of the supernova SN 1006 in 1006 AD may have been the brightest ever on record and was easily seen from Earth at the time, earning it the moniker “New Star” despite its role as a stellar death knell. The blue filaments running along the upper left and lower right of the image are due to particles accelerated to extremely high energies from the shockwave of SN 1006’s explosion, though astronomers are unsure why they appear to be concentrated in the observed locations. The fluffy red features appearing throughout the interior of the supernova remnant appear to be generated by the reverse shock, a phenomena that heats ejecta to temperatures in the millions of degrees and is caused by the high pressure behind the explosion’s forward shockwave. www.space.com /imageoftheday/image_of_day_051219.html   (252 words)

Chandra :: Photo Album :: SN 1006 :: 15 Dec 05 SN 1006: The Hot Remains of a 1000 Year-Old Supernova The supernova of 1006, or SN 1006, may have been the brightest supernova on record. We now know that SN 1006 heralded not the appearance of a new star, but the cataclysmic death of an old one located about 7,000 light years from Earth. chandra.harvard.edu /photo/2005/sn1006   (380 words)

A burst of brightness - Deccan Herald - Internet Edition   (Site not responding. Last check: 2007-10-14) SN 1006 was seen by people (there being no telescopes then) all over the globe from China, the Middle East and Europe. SN 1572 was observed by the famous astronomer, Tycho Brahe in 1572, and SN 1604 by Kepler on October 9, 1604! Moreover SN 1006 was not in the galactic plane and not obscured by dust. www.deccanherald.com /deccanherald/may232006/snt132212006522.asp   (856 words)

SN 1006 - Wikipedia, the free encyclopedia The 1006 supernova as astronomer Tunc Tezel imagines it to have been seen from a spot in what is now Turkey. SN 1006 was a Supernova that occurred in the year 1006 AD. According to Songshi in the section of 56 and 461, the star was seen on May 1, 1006 which appeared to the south of constellation Di, east of Lupus and one degree to the west of Centaurus. en.wikipedia.org /wiki/SN_1006   (644 words)

Space & Astronomy News - Brightest star ever seen 1,000 years ago - 07/03/2003 The most detailed record of the 1006 star is by Egyptian physician and astrologer, Ali bin Ridwan who wrote about witnessing the spectacle during his youth and compared the spectacle with Venus and the Moon: "It's light illuminated the horizon and it twinkled very much," Winkler quoted Ridwan saying. Although the remnants of the supernova in 1006 AD are all but invisible today, Winkler and colleagues were able to capture a faint shell of glowing hydrogen surrounding the site where the star exploded. What's special about SN 1006 - as it has been dubbed - is that it's one of only four supernovae ever to be seen within our own galaxy. www.abc.net.au /science/news/space/SpaceRepublish_800470.htm   (710 words)

3 Results   (Site not responding. Last check: 2007-10-14) X-ray observations indicate that the interior of SN 1006 is almost free of neutral hydrogen, thus this H Within the large uncertainties involved in the models, this limit for the distance is compatible with the average of the various distance estimates for SN 1006, as summarized above. This latter position coincides with the portion of SN 1006 with the lowest emission in all wavelengths. aanda.u-strasbg.fr:2002 /papers/aa/full/2002/21/aa2223/node3.html   (1977 words)

1006 Supernove Despite its declination of -38° in the year 1006 (-42° in J2000) numerous records of contemporary sightings of northern observers are known to exist. It was found that the supernova was expanding at the rate of 2,600 ± 300 km/sec, its distance was estimated as 1.8 ± 0.3 kpc and proper motions of the expanding filament were measured by van den Bergh in 1988 as 0.30 ± 0.04 arc seconds/yr based upon an 11 year baseline. Despite numerous investigations into the nature of SN 1006 across the entire electromagnetic spectrum, it has proved to be elusive to our understanding. weblore.com /richard/1006_supernove.htm   (889 words)

ASCA Science Highlights: SNR These and other discoveries are leading to new insights into the nature of the ejecta of young remnants, the physics of supernova-induced shock waves, and the discovery and study of pulsar-powered synchrotron nebulae. The task of identification is further complicated by the occasional presence of thermal X-ray emission from the SN blast wave which may accompany the plerionic emission in the so-called ``composite'' remnants. This work showed how it was possible to determine the type of the SN explosion from a comparison of the ASCA X-ray spectra of the remnant with the nucleosynthetic yields expected from Type Ia and II SNe. heasarc.gsfc.nasa.gov /docs/asca/science/science_snr.html   (3289 words)

Supernova 1006   (Site not responding. Last check: 2007-10-14) In spring 1006 A.D., medieval people living sufficiently south were surprised by the brightest "new star" ever recorded in historic times. Although its exact position could only be figured out recently by finding its nebulous remnant, it was recorded by observers (often astrologers) in Europe, China, Japan, Egypt and Iraq, to have occurred near the star Beta Lupi, on the border to Centaurus. The supernova was probably seen first on April 30, 1006, according to records from the Far East (China and Japan). www.seds.org /~spider/spider/Misc/sn1006.html   (165 words)

Supernovae, Neutron Stars & Pulsars SN 1006 in Centaurus in the southern sky. SN 1054 - The Crab Supernova in Taurus recorded by Chinese and Native American astronomers. SN 1572 - Tycho's Supernova, studied in detail by Tycho Brahe. casswww.ucsd.edu /public/tutorial/SN.html   (1867 words)

No Title I have demonstrated that a detailed model of synchrotron emission is capable of describing the spectrum of SN 1006, a dominantly nonthermal supernova. 1998) it is possible to uniquely determine the magnetic field (suggesting SN 1006 is far from equipartition) and deduce the relativistic electron acceleration efficiency in the shock, larg er by a factor of two than previous estimates. Fits to the integrated spectrum of SN 1006 reveal both nonthermal emission and a thermal component with high abundances (including indications of half a solar mass of iron), predicted by nucleosynthesis models of Type Ia supernova (Iwamoto et al. www.aoc.nrao.edu /~kdyer/pastwork.html   (1725 words)

Jul 1997 - Supernova SN 1006   (Site not responding. Last check: 2007-10-14) In 1006, the appearance of a "new" star in the sky was documented by observers in China, Japan, Korea, Arabian countries, and Europa. It was a relatively close supernova, 3,500 light years wide, which reached the brightness of a quarter of the Moon. With it we see perhaps in SN 1006 for the first time the acceleration regions of the cosmic radiation. wave.xray.mpe.mpg.de /rosat/calendar/1997/jul   (270 words)

QSO behind SN 1006 Ni that powers the Type Ia SN light curve (Colgate and McKee 1969; Arnett 1979; Nomoto, Thielemann, and Yokoi 1984; an extensive set of models and references to more recent literature is given in Höflich and Khokhlov 1996). As we noted in § 1, the one line of sight through SN 1006 that has so far been probed, i.e., that to the SM star, has yielded rich information while deepening the mystery of where the iron in this supposed Type Ia remnant may be hiding. The object in the circle is the QSO with the spectrum shown in Fig. ecf.hq.eso.org /~ralbrech/sepdec97apjl/5309.html   (2714 words)

Hubble Heritage There are two different types of supernovas: one formed by the thermonuclear explosion of an accreting white dwarf star, and the other formed by the rebound explosion following the collapse of the core of a massive star. Of the six known supernovas in our Milky Way in the last 1000 years, SN 1006, and SN 1572 (Tycho's supernova) are of the former type, while SN 1054 (Crab Nebula), SN 1181 and SN 1680? (Cassiopeia A) are of the latter type, and SN 1604 (Kepler's supernova) is the only one for which the type is as yet unknown. heritage.stsci.edu /2004/29/caption.html   (531 words)

SN 1006, a source of cosmic rays (ASCA visiting exhibit) ASCA observations of one particular SNR, the supernova of 1006 A.D. (SN 1006), may now be the first example of synchrotron radiation from cosmic rays with energies about 100 trillion electron volts (100 TeV) within a SNR's shell. However, SN 1006 does not fit neatly into this picture, apparently showing extended emission of continuum X-rays. This is the first observational link between particle acceleration at a SN shock front and high-energy cosmic rays within our Galaxy. imagine.gsfc.nasa.gov /docs/features/exhibit/asca_sn1006.html   (666 words)

Tag » 1006 Blair, features the SNR 1006 far UV observations with the HUT of the Astro-2... RFC 1006 - ISO transport services on top of the TCP: Version 3... Cass [Page 2] RFC 1006 May 1987 Putting all this together, the service-provider... ummyeah.com /tag/1006   (266 words)

artiephesus - Myth and Astronomy, Greeks and Native Americans I had a story on SPACE.com yesterday about a very cool discovery: a one-thousand year old petroglyph, or rock carving, that was found in Arizona and which might depict the supernova of 1006, or SN 1006. The researcher who made the discovery argues that symbols of a scorpion and stars on the petroglyph match the relative positions of SN 1006 to the constellation Scorpius when the star first exploded. I make my case for these glyphs representing the 1006 supernova event largely on the arrangement of the scorpion and the bright star being very similar to the arrangement of these figures in the sky on the night the supernova appeared. artiephesus.livejournal.com /30100.html   (660 words)

Universe Today - 1000 Year-Old Supernova Remnant   (Site not responding. Last check: 2007-10-14) Fri, 16 Dec 2005 - NASA's Chandra X-Ray Observatory has taken a new photograph of SN 1006; a supernova that appeared in the sky in 1006, and blazed more brightly than Venus. We now know that SN 1006 announced the death of a star located approximately 7,000 light years from Earth. It was likely a white dwarf star that had been pulling matter off an orbiting companion star. www.universetoday.com /am/publish/sn_1006_supernova.html   (393 words)

Other Supernovae images In my effort to make the Bright Supernova pages be the principle place on the to find information on SN, I have on this page placed links to all of the "other" SN images which I have encountered. All of the SN on this page are indexed the same way that the SN on the other pages are referenced, so clicking on the name of a Supernova will automatically take you directly to that specific SN. Visual Discovery of SN 1995V in NGC 1087 by Robert Evans www.rochesterastronomy.org /snimages/snother.html   (261 words)

Ancient rock art chronicles supernova - Space.com - MSNBC.com A petroglyph possibly depicting the supernova of A.D. 1006 (star symbol, right of center) and the constellation Scorpius (scorpion symbol, left of center). In the spring of 1006, stargazers in Asia, the Middle East and Europe recorded the birth of a “new star” above the southern horizon of the night sky, in the constellation Lupus, just south of Scorpio. Although nearly invisible today, the supernova of 1006, or SN 1006, was perhaps the brightest stellar event ever to occur in recorded human history. www.msnbc.msn.com /id/13149432   (621 words)

Peter Lundqvist :: Publications :: My most recent papers (2005a)] High-resolution observations of SN 2001gd in NGC 5033. [Lundqvist and Sonneborn (2004)] The structure of the circumstellar gas of SN 1987A. A refined upper limit on the mass of Ti-44 in the ejecta of SN 1987A. www.astro.su.se /~peter/papers_recent.html   (693 words)

Object: Supernova Remnants Tycho supernova remnant (SN 1572) - ROSAT HRI Cas A, Kepler, Tycho, and SN 1006 - Einstein SSS comparative spectra SN 1006 - OSO 8 (2 - 20 keV) heasarc.gsfc.nasa.gov /docs/objects/snrs/snrs.html   (155 words)

Title page for ETD   (Site not responding. Last check: 2007-10-14) I present the first test of sophisticated synchrotron models against high resolution observations on SN 1006, the first and best example of synchrotron X-ray emission, which has been well observed at radio, X-ray and gamma-ray wavelengths. Earlier calculations suggested that SN 1006 was escape limited. I adapted an escape-limited synchrotron model for XSPEC, and demonstrated that it can account for the dominantly nonthermal integrated spectrum of SN 1006 observed by ASCA-GIS and RXTE while constraining the values of the maximum electron energy and other parameters. www.lib.ncsu.edu /etd/public/etd-39461210710152211/etd-title.html   (439 words)

SPACE.com -- Ancient Rock Art Depicts Exploding Star The horizon profile is a true representation of the site horizon, made from photographs taken at the site and placed correctly with respect to the stars and the direction of true south. The carving was discovered in White Tanks Regional Park just outside Phoenix, in an area believed to have been occupied by a group of Native Americans called the Hohokam from about 500 to 1100 A.D. The finding is being announced today at the 208th meeting of the American Astronomical Society in Calgary, Canada. In the spring of 1006, stargazers in Asia, the Middle East and Europe recorded the birth of a “new star” above the southern horizon of the night sky, in the constellation Lupus, just south of Scorpio [simulation]. www.space.com /scienceastronomy/060605_rock_art.html   (742 words)

Celestia -- Frequently Asked Questions A bright star, two to three times the size of Venus and as bright as the quarter Moon, appeared in the area of Beta Lupi on the evening of May 1, 1006. It was recorded in the logs of an Islamic astronomer in Cairo and a monk in Switzerland; as well as by the royal astronomers of China and Japan. A faint, shell-type distorted nebula with no core pulsar, PKS 1459-41, is generally accepted as the remnant of this great supernova of 1006. homepage.fcgnetworks.net /rduch/faqs.htm   (2254 words)

[No title]   (Site not responding. Last check: 2007-10-14) Synchrotron Models for X-Rays from the Supernova Remnant SN 1006 The bright rims have a featureless power-law spectrum while fainter parts of the remnant show a normal thermal spectrum with the expected lines. Models with an upstream magnetic field of 3 mu G and without escape overpredict X-rays at 4 keV by over an order of magnitude. wonka.physics.ncsu.edu /Astro/papers/rey96a.html   (328 words)

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