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{{Short description|Gamma-ray burst in constellation Canes Venatici}} |
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{{expert|Astronomy|date=July 2011}} |
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{{Infobox astronomical event |
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{{tone|date=July 2011}} |
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| ra = {{RA|14|02|40.10}} |
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| dec = {{DEC|+32|10|14.6}} |
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| z = 9.06 ≤ ''z'' ≤ 9.52 |
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| energy = 3.5 × 10<sup>52</sup> erg |
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}} |
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'''GRB 090429B''' was a [[gamma-ray burst]] observed on 29 April 2009 by the [[Burst Alert Telescope]] aboard the [[Swift_Gamma-Ray_Burst_Mission|Swift satellite]]. The burst triggered a standard burst-response observation sequence, which started 106 seconds after the burst.<ref name="cucchiara" /> The X-ray telescope aboard the satellite identified an uncatalogued fading source. No optical or UV counterpart was seen in the UV–optical telescope. Around 2.5 hours after the burst trigger, a series of observations was carried out by the [[Gemini North]] telescope, which detected a bright object in the infrared part of the spectrum. No evidence of a host galaxy was found either by Gemini North or by the [[Hubble Space Telescope]].<ref name="cucchiara">{{cite journal|last1=Cucchiara|first1=A.|last2=Levan|first2=A. J.|last3=Fox|first3=D. B.|last4=Tanvir|first4=N. R.|last5=Ukwatta|first5=T. N.| last6= Berger |first6=E.|last7=Krühler|first7=T.|last8=Yoldaş|first8=A. Küpcü|last9=Wu|first9=X. F.| last10=Toma| first10=K.| last11=Greiner| first11=J.| last12=E. Olivares| first12=F.| last13=Rowlinson |first13=A. |last14=Amati| first14=L. |last15=Sakamoto |first15=T. |last16=Roth| first16=K. |last17 =Stephens|first17=A.|last18=Fritz|first18=Alexander|last19=Fynbo|first19=J. P. U.| last20=Hjorth |first20=J. |last21=Malesani |first21=D. |last22= Jakobsson |first22=P.|last23=Wiersema|first23=K.|last24=O'Brien|first24=P. T.|last25=Soderberg|first25=A. M.|author25-link=Alicia M. Soderberg|last26=Foley|first26=R. J.| last27= Fruchter| first27=A. S.|last28=Rhoads|first28=J.|last29=Rutledge|first29=R. E.|last30=Schmidt|first30=B. P.|last31=Dopita|first31=M. A.| last32= Podsiadlowski|first32=P.|last33=Willingale|first33=R.|last34=Wolf|first34=C.|last35=Kulkarni|first35=S. R.|last36=D'Avanzo|first36=P.|title=A PHOTOMETRIC REDSHIFT OFz~ 9.4 FOR GRB 090429B|journal=The Astrophysical Journal|date=20 July 2011|volume=736|issue=1|pages=7|doi=10.1088/0004-637X/736/1/7|arxiv = 1105.4915 |bibcode = 2011ApJ...736....7C |s2cid=19568351}}</ref> Though this burst was detected in 2009, it was not until May 2011 that its distance estimate of 13.14 billion light-years was announced. With 90% likelihood, the burst had a [[photometric redshift]] greater than ''z'' = 9.06, which would make it the most distant GRB known, although the error bar on this estimate is large, providing a lower limit of ''z'' > 7.<ref name="cucchiara" /><ref name=SD-2011-05-27>Space Daily, [http://www.spacedaily.com/reports/Explosion_Helps_Researcher_Spot_Universe_Most_Distant_Object_999.html Explosion Helps Researcher Spot Universe's Most Distant Object], 27 May 2011</ref> |
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The amount of energy released in the burst was estimated at 3.5 × 10<sup>52</sup> [[erg]]. For a comparison, the [[Sun]]'s luminosity is 3.8 × 10<sup>33</sup> erg/s.{{citation needed|date=February 2021}} |
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'''GRB 090429B''' was a [[gamma-ray burst]] first detected on 29 April 2009, the second detected that day. Though this burst was detected in 2009, it was not until 2011 that its distance was announced, have a redshift of z=9.4, becoming the most distant GRB known in May 2011, usurping [[GRB 090423]].<ref name=SD-2011-05-27> Space Daily, [http://www.spacedaily.com/reports/Explosion_Helps_Researcher_Spot_Universe_Most_Distant_Object_999.html Explosion Helps Researcher Spot Universe's Most Distant Object], 27 May 2011 </ref> |
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*[[GRB 090423]], the most distant [[gamma-ray burst]] with spectroscopic confirmation |
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On 2009 April 29, a five-second-long burst of [[gamma ray]]s from the constellation [[Canes Venatici]] triggered the Burst Alert Telescope on NASA's [[Swift Gamma-Ray Burst Mission|Swift satellite]]. As with most [[gamma-ray burst]]s, this one, designated GRB 090429B, heralded the death of a star some 30 times the [[solar mass|Sun's mass]] and the likely birth of a new [[black hole]]. |
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==References== |
==References== |
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{{reflist}} |
{{reflist}} |
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| ⚫ | |||
{{Canes Venatici}} |
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{{DEFAULTSORT:GRB 090429B}} |
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{{s-start}} |
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{{s-bef|before=[[GRB 090423]]}} |
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{{s-ttl|title=[[List_of_gamma-ray_bursts#Most distant GRB|Most distant gamma-ray burst]] |
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|years=2011 — }} |
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{{s-aft|after=}} |
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{{s-end}} |
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[[Category:Gamma-ray bursts|090429B]] |
[[Category:Gamma-ray bursts|090429B]] |
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[[Category:Astronomical objects discovered in 2009|20090429]] |
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[[Category:April 2009 events]] |
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{{astronomy-stub}} |
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[[Category:Canes Venatici]] |
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Latest revision as of 01:56, 9 August 2024
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| Event type | Gamma-ray burst  |
|---|---|
| Constellation | Canes Venatici |
| Right ascension | 14h 02m 40.10s |
| Declination | +32° 10′ 14.6″ |
| Total energy output | 3.5 × 1052 erg |
| Other designations | GRB 090429B |
GRB 090429B was a gamma-ray burst observed on 29 April 2009 by the Burst Alert Telescope aboard the Swift satellite. The burst triggered a standard burst-response observation sequence, which started 106 seconds after the burst.[1] The X-ray telescope aboard the satellite identified an uncatalogued fading source. No optical or UV counterpart was seen in the UV–optical telescope. Around 2.5 hours after the burst trigger, a series of observations was carried out by the Gemini North telescope, which detected a bright object in the infrared part of the spectrum. No evidence of a host galaxy was found either by Gemini North or by the Hubble Space Telescope.[1] Though this burst was detected in 2009, it was not until May 2011 that its distance estimate of 13.14 billion light-years was announced. With 90% likelihood, the burst had a photometric redshift greater than z = 9.06, which would make it the most distant GRB known, although the error bar on this estimate is large, providing a lower limit of z > 7.[1][2]
The amount of energy released in the burst was estimated at 3.5 × 1052 erg. For a comparison, the Sun's luminosity is 3.8 × 1033 erg/s.[citation needed]
See also
[edit]- GRB 090423, the most distant gamma-ray burst with spectroscopic confirmation
References
[edit]- ^ a b c Cucchiara, A.; Levan, A. J.; Fox, D. B.; Tanvir, N. R.; Ukwatta, T. N.; Berger, E.; Krühler, T.; Yoldaş, A. Küpcü; Wu, X. F.; Toma, K.; Greiner, J.; E. Olivares, F.; Rowlinson, A.; Amati, L.; Sakamoto, T.; Roth, K.; Stephens, A.; Fritz, Alexander; Fynbo, J. P. U.; Hjorth, J.; Malesani, D.; Jakobsson, P.; Wiersema, K.; O'Brien, P. T.; Soderberg, A. M.; Foley, R. J.; Fruchter, A. S.; Rhoads, J.; Rutledge, R. E.; Schmidt, B. P.; Dopita, M. A.; Podsiadlowski, P.; Willingale, R.; Wolf, C.; Kulkarni, S. R.; D'Avanzo, P. (20 July 2011). "A PHOTOMETRIC REDSHIFT OFz~ 9.4 FOR GRB 090429B". The Astrophysical Journal. 736 (1): 7. arXiv:1105.4915. Bibcode:2011ApJ...736....7C. doi:10.1088/0004-637X/736/1/7. S2CID 19568351.
- ^ Space Daily, Explosion Helps Researcher Spot Universe's Most Distant Object, 27 May 2011
This article incorporates public domain material from NASA's Swift Finds Most Distant Gamma-ray Burst Yet. National Aeronautics and Space Administration.
