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词条 Robert J. Nemiroff
释义

  1. Research

  2. Astronomy Picture of the Day (APOD)

  3. Astrophysics Source Code Library (ASCL)

  4. Books

  5. References

  6. External links

Dr. Robert J. Nemiroff is a Professor of Physics at Michigan Technological University. He received his Ph.D. from the University of Pennsylvania in Astronomy and Astrophysics in 1987 and his B.S. from Lehigh University in Engineering Physics in 1982.[1] He is an active researcher with interests that include gamma-ray bursts, gravitational lensing, and cosmology, and is the cofounder and coeditor of Astronomy Picture of the Day (APOD),[2] the home page of which receives over a million hits a day, approximately 20% of nasa.gov traffic.[3] He is married and has one daughter.[4]

Research

Nemiroff's research interests include gamma-ray bursts, gravitational lensing, sky monitoring, and cosmology.

Among other findings, his research on gamma-ray bursts:

  • showed (along with others) that gamma-ray bursts are consistent with a cosmological distance scale origin before they were discovered to be so distant[5][6]
  • led a team that, along with others, showed a lack of energy-dependence in the speed of photons from distant gamma-ray bursts which implies, in contrast to some theories of quantum gravity, that the universe is smooth below the Planck-length scale, as Einstein had predicted[7][8][9]

In 1999 Nemiroff and colleague Bruce Rafert published a paper showing that continuous astronomical sky monitors could soon become a reality.[10] With students, Nemiroff's initial night sky monitor was an automatically repeating SLR camera with a fisheye lens deployed to Michigan Technological University in 1999,[11] Nemiroff then led a group that designed, built, and deployed the first astronomical all sky optical web monitor, dubbed a CONtinuous CAMera (CONCAM), and in 2000 deployed it to Kitt Peak National Observatory.[12] By the mid-2000s, most major astronomical observatories deployed CONCAM or CONCAM-like devices together capable of monitoring most of the night sky most of the time.[13] Astronomical all sky web monitors are now common at astronomical observing sites.[14] Subsequent collaborative efforts in astronomical deep-sky monitoring now include Pan-STARRs and LSST.

In 1986, he predicted the likelihood of microlensing[15] and calculated basic microlensing induced light curves for several possible lens-source configurations in his 1987 thesis.[16]

Among his microlensing findings, he, along with others:

  • predicted before observational recovery that microlensing light curves can effectively resolve the surface of source stars[17]
  • showed that microlensing boosts the brightnesses of stars actually below the magnitude limit of a survey over the survey limit[18]

Nemiroff and graduate student Bijunath R. Patla showed that the Sun is a "very interesting gravitational lens,"[19][20] and Nemiroff found that GRB pulses start at the same time at every energy and that they are scale invariant over energy.[21]

His complete publication list is available from ADS.

Astronomy Picture of the Day (APOD)

Nemiroff is one of two creators and editors of the Astronomy Picture of the Day (APOD) website. Started in 1995 by Nemiroff and Dr. Jerry T. Bonnell, APOD is consistently among the most popular astronomy sites.[22] Its home page typically receives over one million hits per day;[23] APOD has served over one billion images [24] since its start. It is translated into more than 20 languages and has social media outlets on Facebook, Google+, Twitter, and various apps.[25]

Nemiroff and Bonnell were awarded the 2015 Klumpke-Roberts Award by the Astronomical Society of the Pacific "for outstanding contributions to public understanding and appreciation of astronomy" for their work on APOD.[26][27]

Astrophysics Source Code Library (ASCL)

Nemiroff and John Wallin established the Astrophysics Source Code Library (ASCL), an online registry of scientist-written software used in astronomy or astrophysics research, in 1999.[28] The ASCL improves the transparency of astrophysics research by making the software used in research discoverable for examination.[29]

Books

  • [https://www.amazon.com/The-Universe-Robert-J-Nemiroff/dp/B007PMQML2 The Universe: 365 Days], 2003
  • [https://www.amazon.com/Astronomy-Days-Jerry-T-Bonnell/dp/0810957159/ref=sr_1_1?s=books&ie=UTF8&qid=1390426044&sr=1-1&keywords=bonnell+astronomy%3A+365+days Astronomy: 365 Days], 2006

References

1. ^{{cite web|url=http://apod.nasa.gov/htmltest/rjn_bio.html|title=RJN's Bio Page|publisher=apod.nasa.gov|accessdate=2014-02-01}}
2. ^{{cite news|last=O'Brien|first=Miles|title=Astronomy Picture of the Day|url=http://transcripts.cnn.com/TRANSCRIPTS/0209/21/smn.06.html|accessdate=22 January 2014|newspaper=CNN Saturday Morning News|date=September 21, 2002}}
3. ^{{cite web|title=Alexa|url=http://www.alexa.com/siteinfo/nasa.gov|accessdate=22 January 2014}}
4. ^{{cite web|title=About Astronomy Picture of the Day|url=http://apod.nasa.gov/apod/lib/about_apod.html|accessdate=22 January 2014}}
5. ^{{cite journal|last=Norris|first=J. P.|author2=Nemiroff, R. J. |author3=Scargle, J. D. |author4=Kouveliotou, C. |author5=Fishman, G. J. |author6=Meegan, C. A. |author7=Paciesas, W. S. |author8= Bonnel, J. T. |title=Detection of signature consistent with cosmological time dilation in gamma-ray bursts|journal=Astrophysical Journal|date=April 1994|volume=424|issue=2|pages=540–545|doi=10.1086/173912|bibcode=1994ApJ...424..540N|arxiv=astro-ph/9312049}}
6. ^{{cite news|last=Wilford|first=John Noble|title=Gamma-Ray Finding Bolsters Einstein Theory, Report Says|url=https://www.nytimes.com/1994/01/16/us/gamma-ray-finding-bolsters-einstein-theory-report-says.html|accessdate=23 January 2014|newspaper=The New York Times|date=January 16, 1994}}
7. ^{{cite web|title=Spacetime: A smoother brew than we knew|url=http://phys.org/news/2013-01-spacetime-smoother-brew-knew.html|accessdate=22 January 2014}}
8. ^{{cite journal|last=Nemiroff|first=Robert J.|author2=Connolly, Ryan |author3=Holmes, Justin |author4= Kostinski, Alexander B. |title=Bounds on Spectral Dispersion from Fermi-Detected Gamma Ray Bursts|journal=Physical Review Letters|date=June 2012|volume=108|issue=23|doi=10.1103/PhysRevLett.108.231103|bibcode=2012PhRvL.108w1103N |pmid=23003941 |page=231103|arxiv=1109.5191}}
9. ^{{cite news|last=Cowen|first=Ron|title=Cosmic race ends in a tie|url=http://www.nature.com/news/cosmic-race-ends-in-a-tie-1.9768|accessdate=23 January 2014|newspaper=Nature|date=10 January 2012}}
10. ^{{cite journal|last=Nemiroff|first=R.J.|author2=Rafert, J.B. |title=Toward a Continuous Record of the Sky|journal=Publications of the Astronomical Society of the Pacific|volume=111|issue=761|pages=886–897|doi=10.1086/316402|bibcode=1999PASP..111..886N|arxiv=astro-ph/9809403|year=1999}}
11. ^{{cite journal|last=Zimmer|first=G.A.|author2=Pereira, W.E. |author3=Nemiroff, R.J. |author4= Rafert, J.B. |title=A Passive Sky Variability Monitor for Under $1500|journal=American Astronomical Society, 194th AAS Meeting, #70.09|volume=31|series=Bulletin of the American Astronomical Society|pages=93|bibcode=1999AAS...194.7009Z|year=1999}}
12. ^{{cite journal|last=Pereira|first=W.E.|author2=Nemiroff, R.J. |author3=Rafert, J.B. |author4=Ftaclas, C. |author5= Perez-Ramirez, D. |title=CONCAM Sky Monitor Operating at KPNO|journal=American Astronomical Society, 197th AAS Meeting, #115.10|volume=32|series=Bulletin of the American Astronomical Society|pages=1599|bibcode=2000AAS...19711510P|year=2000}}
13. ^{{cite journal|last=Nemiroff|first=R.J.|author2=Schwarz, H.E. |collaboration=CONCAM Collaboration & TASCA Collaboration |title=Expanding Fisheye Webcam Network Now Capable of Monitoring Most of the Night Sky|journal=American Astronomical Society Meeting 202, #03.03|volume=35|series=Bulletin of the American Astronomical Society|page=702|bibcode=2003AAS...202.0303N|year=2003}}
14. ^See, for example, http://www.cfht.hawaii.edu/~asiva/ & http://www.nasa.gov/connect/chat/allsky.html ; http://www.allskycam.com/
15. ^{{cite journal|last=Nemiroff|first=Robert J.|title=Random gravitational lensing|journal=Astrophysics and Space Science|date=June 1986|volume=123|issue=2|pages=381–387|doi=10.1007/BF00653957|bibcode=1986Ap&SS.123..381N}}
16. ^{{cite journal|last=Nemiroff|first=Robert J.|title=Prediction and analysis of basic gravitational microlensing phenomena|date=December 1987|bibcode=1987PhDT........12N|doi=10.5281/zenodo.33974}}
17. ^{{cite journal|last=Nemiroff|first=Robert J.|author2=Wickramasinghe, W. A. D. T.|title=Finite source sizes and the information content of macho-type lens search light curves|journal=Astrophysical Journal Letters|date=March 1994|volume=424|issue=1|pages=L21–L23|doi=10.1086/187265|bibcode=1994ApJ...424L..21N|arxiv=astro-ph/9401005}}
18. ^{{cite journal|last=Nemiroff|first=Robert J.|title=Magnification bias in galactic microlensing searches|journal=Astrophysical Journal|date=November 1994|volume=435|issue=2|pages=682–684|doi=10.1086/174845|bibcode=1994ApJ...435..682N|arxiv=astro-ph/9403013}}
19. ^{{cite web|last=Nemiroff|first=Robert|title=Who is this R. J. Nemiroff? Some Favorite Astronomy Ideas|url=http://www.phy.mtu.edu/apod/NotableIdeas.html#SunLens|accessdate=22 January 2014}}
20. ^{{cite journal|last=Patla|first=Bijunath|author2=Nemiroff, Robert J. |title=Gravitational Lensing Characteristics of the Transparent Sun|journal=The Astrophysical Journal|date=2008|volume=685|issue=2|pages=1297–1303|doi=10.1086/588805|url=http://iopscience.iop.org/0004-637X/685/2/1297/|bibcode=2008ApJ...685.1297P|arxiv=0711.4811}}
21. ^{{cite journal|last=Nemiroff|first=Robert|title=The Pulse Scale Conjecture and the Case of BATSE Trigger 2193|journal=The Astrophysical Journal|date=2000|volume=544|issue=2|pages=805–810|doi=10.1086/317230|bibcode=2000ApJ...544..805N|arxiv=astro-ph/0001345}}
22. ^{{cite journal|last=Pullen|first=Lee|author2=Russo, Pedro |title=Robert Nemiroff: Communicating Astronomy 365 Days a Year|journal=Communicating Astronomy with the Public|date=June 2010|issue=8|pages=22–23|url=http://www.capjournal.org/issues/08/08_22.php|accessdate=22 January 2014}}
23. ^{{cite web|title=From 14 to a Million: The Astronomical Growth of the Astronomy Picture of the Day|url=http://physicsbuzz.physicscentral.com/2014/01/from-14-to-million-astronomical-growth.html|work=Physics Buzz|accessdate=26 January 2014}}
24. ^{{Cite APOD|title=APOD Turns 17|date=16 June 2012|access-date=22 January 2014}}
25. ^{{Cite APOD|title=APOD Turns 17|date=16 June 2012|access-date=22 January 2014}}
26. ^{{cite web|url=http://www.astrosociety.org/about-us/klumpke-roberts-award-of-the-astronomical-society-of-the-pacific/|title=Klumpke-Roberts Award of The Astronomical Society of the Pacific|publisher=Astronomical Society}}
27. ^{{cite web|url=https://www.astrosociety.org/society-news/the-astronomical-society-of-the-pacific-announces-its-2015-award-recipients-for-astronomy-research-and-education/#klumpke|title=The Astronomical Society of the Pacific Announces Its 2015 Award Recipients For Astronomy Research And Education|publisher=Astronomical Society}}
28. ^{{cite journal|title=The Astrophysics Source Code Library: http://www.ascl.net/|journal=Bulletin of the American Astronomical Society|author=Nemiroff, R. J.|author2=Wallin, J. F. |volume=31 |page=885 |date=May 1999|bibcode=1999AAS...194.4408N}}
29. ^{{cite web|title=Astrophysics Source Code Library|url=http://ascl.net/|accessdate=21 October 2013}}

External links

  • Faculty web page at MTU
  • Astronomy Picture of the Day
  • Astrophysics Source Code Library
  • {{Gutenberg author | id=77}}
  • {{Internet Archive author |sname=Robert J. Nemiroff}}
{{DEFAULTSORT:Nemiroff, Robert J.}}

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