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in the rest-frame ultraviolet portion of quasar spectra, concluding that it arose from absorption by a cosmological distribution of partly ionized neutral
Hydrogen, and establishing the existence of the
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210:. He completed this degree in 18 months, was employed for a further year as a postdoctoral researcher, and then joined the Caltech faculty as an Assistant Professor in 1979, aged 25.
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234:, it had some advantages over them in possessing zero read noise. This combination of factors generated transformational developments in the following areas of astronomy:
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By the time of his death, Young had written 33 papers during his five years at
Caltech, many of which had a major influence on the development of astronomical research.
218:
Young was a versatile scientist, bringing powerful theoretical insights to observational projects - both those of his own devising and those led by his PhD supervisor,
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of a large number of stars in the lensing galaxy, leading to rapid fluctuations in the magnification of the quasar images. His theoretical study of these superimposed
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and his Image Photon
Counting Spectrograph. The IPCS was the first photon-counting device used in astronomy; although displaced by the more efficient
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222:. They were able to make effective use of the large amounts of time available to Caltech researchers on the Mount Palomar 200-inch
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in the nucleus of the elliptical galaxy M87. This object was latterly revealed via direct high-resolution imaging by the
459:"The distribution of Lyman-alpha absorption lines in the spectra of six QSOs: evidence for an intergalactic origin"
416:
Sargent, W. L. W.; Young, P. J.; Boksenberg, A.; Shortridge, K.; Lynds, C. R.; Hartwick, F. D. A. (May 1, 1978).
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In 1978, Young et al. and
Sargent et al. provided evidence from photometry and spectroscopy for a supermassive
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151:
80:
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Discovery of intergalactic medium; detection of black hole in M87; gravitational lensing and microlensing
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and psychological issues since his time at
Cambridge, and had previously talked about killing himself.
379:"Evidence for a supermassive object in the nucleus of the galaxy M87 from SIT and CCD area photometry"
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198:(highest-placed First Class degree) in 1975. In 1975-76, he studied for an MSc in astronomy with
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which he had obtained from a chemistry stockroom at the university. According to
Sargent and
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478:
437:
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126:
500:"The double quasar Q0957+561 A, B: a gravitational lens image formed by a galaxy at z=0.39"
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Young, P. J.; Westphal, J. A.; Kristian, J.; Wilson, C. P.; Landauer, F. P. (May 1, 1978).
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268:. This paper produced the first detailed mass models for a cosmological lensing event.
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Young, P.; Gunn, J. E.; Kristian, J.; Oke, J. B.; Westphal, J. A. (October 1, 1980).
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in 1976-1981 he carried out foundational research, including the discovery of the
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Sargent, W. L. W.; Young, P. J.; Boksenberg, A.; Tytler, D. (January 1, 1980).
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418:"Dynamical evidence for a central mass concentration in the galaxy M87"
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51:
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In 1980, Young et al. identified the galaxy responsible for the first
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at the
University of Texas, Austin. In 1976, he began his PhD at the
541:"Q0957+561 : effects of random stars on the gravitational lens"
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332:"New astronomy prize dedicated to former pupil with star quality"
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In 1980, Sargent, Young, Boksenberg & Tytler studied the
150:, who made major contributions in theory and observation to
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226:, with its power being enhanced via collaboration with
178:; developing the theory of gravitational microlensing.
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Physics, American
Institute of (September 24, 2021).
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In 1981, Young realised that the multiple images in
125:
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86:
76:
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649:British expatriate academics in the United States
174:; detecting the optical counterpart to the first
146:(31 July 1954—5 September 1981) was a British
283:helped initiate the subject of gravitational
8:
463:The Astrophysical Journal Supplement Series
644:California Institute of Technology faculty
29:
18:
639:California Institute of Technology alumni
564:
523:
482:
441:
323:
629:Alumni of St John's College, Cambridge
583:Goldreich, Peter (November 12, 2002).
298:On 5 September 1981, Young committed
7:
634:University of Texas at Austin alumni
204:California Institute of Technology
160:California Institute of Technology
120:California Institute of Technology
14:
585:"Interview with Peter Goldreich"
190:, Young studied mathematics at
360:"Wallace Sargent - Session II"
1:
659:Suicides by cyanide poisoning
192:St John's College, Cambridge
539:Young, P. (March 1, 1981).
336:The Grammar School at Leeds
206:, under the supervision of
158:. During five years at the
680:
310:, Young had suffered with
194:(1972-1975), where he was
545:The Astrophysical Journal
504:The Astrophysical Journal
422:The Astrophysical Journal
383:The Astrophysical Journal
281:gravitational deflections
275:would be affected by the
137:
94:
28:
182:Early life and education
624:British astrophysicists
243:Event Horizon Telescope
214:Scientific achievements
168:supermassive black hole
152:extragalactic astronomy
81:University of Cambridge
664:Suicides in California
232:charge-coupled devices
16:British astrophysicist
405:– via NASA ADS.
264:, the Double Quasar
200:Gerard de Vaucouleurs
166:; the detection of a
619:British cosmologists
589:resolver.caltech.edu
338:. November 29, 2012.
277:gravitational fields
255:intergalactic medium
228:Alexander Boksenberg
188:Leeds Grammar School
164:intergalactic medium
557:1981ApJ...244..756Y
516:1980ApJ...241..507Y
475:1980ApJS...42...41S
434:1978ApJ...221..731S
395:1978ApJ...221..721Y
262:gravitational lens
250:Lyman-alpha forest
176:gravitational lens
304:potassium cyanide
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96:Scientific career
62:September 5, 1981
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144:Peter John Young
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308:Peter Goldreich
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220:Wallace Sargent
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208:Wallace Sargent
196:Senior Wrangler
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132:Wallace Sargent
77:Alma mater
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224:Hale Telescope
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87:Known for
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66:(aged 27)
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23:Peter J. Young
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654:1981 suicides
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48:July 31, 1954
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186:Educated at
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116:Institutions
110:Astrophysics
95:
64:(1981-09-05)
614:1981 deaths
609:1954 births
551:: 756–767.
510:: 507–520.
428:: 731–744.
389:: 721–730.
364:www.aip.org
603:Categories
318:References
312:depression
302:by taking
239:Black Hole
44:1954-07-31
469:: 41–81.
273:Q0957+561
266:Q0957+561
156:cosmology
106:Cosmology
70:Pasadena
553:Bibcode
512:Bibcode
471:Bibcode
430:Bibcode
391:Bibcode
300:suicide
52:England
102:Fields
294:Death
154:and
59:Died
38:Born
561:doi
549:244
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479:doi
438:doi
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399:doi
387:221
172:M87
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