Comments on: Were you watching Bootes last night ? http://dorigo.wordpress.com/2008/03/20/were-you-watching-bootes-last-night/ private thoughts of a physicist and chessplayer Thu, 24 Dec 2009 08:50:26 +0000 http://wordpress.com/ hourly 1 By: COPY-PASTEADO DE ASTRONOMIA http://dorigo.wordpress.com/2008/03/20/were-you-watching-bootes-last-night/#comment-99376 COPY-PASTEADO DE ASTRONOMIA Sat, 02 Aug 2008 19:55:23 +0000 http://dorigo.wordpress.com/?p=1182#comment-99376 [...] ESTABAS OBSERVANDO BOOTES AYER A LA NOCHE Via A Quantum Diaries Survivor by Tomasso Dorrigo Un espectacular GRB que llegó a brillar por unos instantes a magnitud visual 6, el mismo día que murió Arthur C. Clarke. GRB 080319B Hora 6:10 to 6:13 UT March 19, en Bootes. z = 0.9 RA(J2000.0) = 14:31:40.97 Dec(J2000.0) = +36:18:07.9 Para mayores informaciones sobre GRB visitar: Gamma-Ray Burst Blog y GAMMA-RAY BURST RECORD: GRB 080319B [...] [...] ESTABAS OBSERVANDO BOOTES AYER A LA NOCHE Via A Quantum Diaries Survivor by Tomasso Dorrigo Un espectacular GRB que llegó a brillar por unos instantes a magnitud visual 6, el mismo día que murió Arthur C. Clarke. GRB 080319B Hora 6:10 to 6:13 UT March 19, en Bootes. z = 0.9 RA(J2000.0) = 14:31:40.97 Dec(J2000.0) = +36:18:07.9 Para mayores informaciones sobre GRB visitar: Gamma-Ray Burst Blog y GAMMA-RAY BURST RECORD: GRB 080319B [...]

]]> By: Nikita Nikolaev http://dorigo.wordpress.com/2008/03/20/were-you-watching-bootes-last-night/#comment-95975 Nikita Nikolaev Wed, 09 Apr 2008 21:03:30 +0000 http://dorigo.wordpress.com/?p=1182#comment-95975 statistically speaking, we will all know about the nature of these explosions in a few million years, or so :) But that's statistically... Now, looking back at my comment, a second thought makes me sad and compels to stop reading your blog for today and get back at textbooks. A chance to beat statistics? May be :) statistically speaking, we will all know about the nature of these explosions in a few million years, or so :) But that’s statistically…

Now, looking back at my comment, a second thought makes me sad and compels to stop reading your blog for today and get back at textbooks. A chance to beat statistics? May be :)

]]> By: dorigo http://dorigo.wordpress.com/2008/03/20/were-you-watching-bootes-last-night/#comment-95585 dorigo Wed, 26 Mar 2008 23:04:44 +0000 http://dorigo.wordpress.com/?p=1182#comment-95585 Hi R., sorry, but I do not know the answer to your question. However, I will try to find out. Cheers, T. Hi R.,

sorry, but I do not know the answer to your question. However, I will try to find out.

Cheers,
T.

]]> By: R.Hari http://dorigo.wordpress.com/2008/03/20/were-you-watching-bootes-last-night/#comment-95562 R.Hari Wed, 26 Mar 2008 09:38:18 +0000 http://dorigo.wordpress.com/?p=1182#comment-95562 The article mentions a red shift of 0.9 which translates to a distance of 7 billion light years. While calculating the red shift of gamma rays is it typical to factor in any red shift due to compton effect? The article mentions a red shift of 0.9 which translates to a distance of 7 billion light years. While calculating the red shift of gamma rays is it typical to factor in any red shift due to compton effect?

]]> By: NASA needs eyewitnesses: Were you at the intersection of Milky Way and Bootës on the evening of March 19? « Millard Fillmore’s Bathtub http://dorigo.wordpress.com/2008/03/20/were-you-watching-bootes-last-night/#comment-95416 NASA needs eyewitnesses: Were you at the intersection of Milky Way and Bootës on the evening of March 19? « Millard Fillmore’s Bathtub Sat, 22 Mar 2008 01:36:42 +0000 http://dorigo.wordpress.com/?p=1182#comment-95416 [...] Milky Way and Bootës on the evening of March 19? No kidding.  Our Italian physicist friend Dorigo passed along the note on his blog, Quantum Diaries Survivor.  George Gliba at NASA (gliba@milkyway.gsfc.nasa.gov) hopes someone was watching Bootës at about [...] [...] Milky Way and Bootës on the evening of March 19? No kidding.  Our Italian physicist friend Dorigo passed along the note on his blog, Quantum Diaries Survivor.  George Gliba at NASA (gliba@milkyway.gsfc.nasa.gov) hopes someone was watching Bootës at about [...]

]]> By: dorigo http://dorigo.wordpress.com/2008/03/20/were-you-watching-bootes-last-night/#comment-95399 dorigo Fri, 21 Mar 2008 20:23:33 +0000 http://dorigo.wordpress.com/?p=1182#comment-95399 Hi Kea, too bad Ligo won't see a thing- we'll have to wait for LISA instead! Yatima, thank you for the useful link. Stephen, thank you for the information. I can only support your invitation to get more information on the event. I believe optical observations are very difficult for a 5th magnitude flare, but there should certainly be somebody who imaged the area during those minutes. Cheers, T. Hi Kea,
too bad Ligo won’t see a thing- we’ll have to wait for LISA instead!

Yatima, thank you for the useful link.

Stephen, thank you for the information. I can only support your invitation to get more information on the event. I believe optical observations are very difficult for a 5th magnitude flare, but there should certainly be somebody who imaged the area during those minutes.

Cheers,
T.

]]> By: Stephen Holland http://dorigo.wordpress.com/2008/03/20/were-you-watching-bootes-last-night/#comment-95393 Stephen Holland Fri, 21 Mar 2008 18:22:37 +0000 http://dorigo.wordpress.com/?p=1182#comment-95393 GRB 080319B. the one in Boötes, lasted for about 200 seconds, which makes it one of the longest GRBs seen. The record is about 20 minutes. In the case of GRB 080319B the peak brightness occurred about 23 seconds into the burst, and lasted for a few seconds. Anyone who was looking up at that time would have seen a very brief flash. It could easily be confused with an Iridium flare. If you think you saw something drop me a line. Any observation may be scientifically useful. GRB 080319B. the one in Boötes, lasted for about 200 seconds, which makes it one of the longest GRBs seen. The record is about 20 minutes. In the case of GRB 080319B the peak brightness occurred about 23 seconds into the burst, and lasted for a few seconds. Anyone who was looking up at that time would have seen a very brief flash. It could easily be confused with an Iridium flare. If you think you saw something drop me a line. Any observation may be scientifically useful.

]]> By: Kea http://dorigo.wordpress.com/2008/03/20/were-you-watching-bootes-last-night/#comment-95377 Kea Fri, 21 Mar 2008 01:35:10 +0000 http://dorigo.wordpress.com/?p=1182#comment-95377 NASA news: http://www.nasa.gov/centers/goddard/news/topstory/2008/brightest_grb.html NASA news:
http://www.nasa.gov/centers/goddard/news/topstory/2008/brightest_grb.html

]]> By: Yatima http://dorigo.wordpress.com/2008/03/20/were-you-watching-bootes-last-night/#comment-95375 Yatima Thu, 20 Mar 2008 22:02:52 +0000 http://dorigo.wordpress.com/?p=1182#comment-95375 GRBs can last pretty "long", and of course the farther away the more redshifted and time-stretched their E(t). Depends on their "type", too. More at the usual suspects: http://imagine.gsfc.nasa.gov/docs/science/know_l1/bursts.html GRBs can last pretty “long”, and of course the farther away the more redshifted and time-stretched their E(t). Depends on their “type”, too. More at the usual suspects:

http://imagine.gsfc.nasa.gov/docs/science/know_l1/bursts.html

]]> By: Coin http://dorigo.wordpress.com/2008/03/20/were-you-watching-bootes-last-night/#comment-95373 Coin Thu, 20 Mar 2008 21:13:06 +0000 http://dorigo.wordpress.com/?p=1182#comment-95373 Interesting, I had assumed GRBs were instantaneous sorts of events. I had not realized the afterglow could last *minutes*! Interesting, I had assumed GRBs were instantaneous sorts of events. I had not realized the afterglow could last *minutes*!

]]> By: Kea http://dorigo.wordpress.com/2008/03/20/were-you-watching-bootes-last-night/#comment-95372 Kea Thu, 20 Mar 2008 20:47:16 +0000 http://dorigo.wordpress.com/?p=1182#comment-95372 AAARRRGHH! That's so cool! Quick! Call LIGO. AAARRRGHH! That’s so cool! Quick! Call LIGO.

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