Ilya S. Khrykin, Ph.D
! ilya.khrykin@ipmu.jp~ https://ikhrykin.github.io/` citizenship: russianÏ A62, Kavli IPMU, University of Tokyo
5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8583 JP

Education2012 – 2016

[Ph.D., Heidelberg University / MPIA (Heidelberg, DE)
Thesis title: Understanding the Sources of HeII Reionization
Advisor: Dr. Joseph F. Hennawi

2010 – 2012

[M.Sc. Physics, Southern Federal University (Rostov-on-Don, RU)
Thesis title: Simulation of global spiral structure of galaxies NGC 3982, NGC 4030
and NGC 5247 in the hydrodynamical approximation.

2006 – 2010

[B.Sc. Physics, Southern Federal University (Rostov-on-Don, RU)

Academic Experience2019 – · · · ·[Postdoctoral researcher at Kavli IPMU (Kashiwanoha, Chiba, JP)2017 – 2019

[Researcher at Southern Federal University (Rostov-on-Don, RU)

Research Interests[cosmology, cosmic reionization, the inter- and circumgalactic media[quasars, co-evolution of supermassive blackholes and galaxies, fast radio bursts[statistical methods and machine learning

Research Publications and Preprints
1

Khrykin, I. S., Hennawi, J. F., Worseck, G., & Davies, F. B. (2021). The ﬁrst measurement of the quasar
lifetime distribution. arXiv e-prints, arXiv:2102.04477. arXiv: 2102.04477 [astro-ph.GA]

2

Worseck, G., Khrykin, I. S., Hennawi, J. F., Prochaska, J. X., & Farina, E. P. (2021). Dating individual
quasars with the HeII proximity eﬀect. arXiv e-prints, arXiv:2101.01196. arXiv: 2101.01196[astro-ph.GA]

3

Khrykin, I. S., Hennawi, J. F., & Worseck, G. (2019). Evidence for short ∼ 1 Myr lifetimes from the He II
proximity zones of z ∼ 4 quasars., 484(3), 3897–3910.  doi:10.1093/mnras/stz135. arXiv: 1810.03391[astro-ph.GA]

4

Khrykin, I. S., Hennawi, J. F., & McQuinn, M. (2017). The Thermal Proximity Eﬀect: A New Probe of
the He II Reionization History and Quasar Lifetime., 838(2), 96.  doi:10.3847/1538-4357/aa6621.
arXiv: 1611.05583 [astro-ph.CO]

5

Khrykin, I. S., Hennawi, J. F., McQuinn, M., & Worseck, G. (2016). The He II Proximity Eﬀect and The
Lifetime of Quasars., 824(2), 133.  doi:10.3847/0004-637X/824/2/133. arXiv: 1511.03659[astro-ph.GA]

6

Khoperskov, S. A., Khoperskov, A. V., Khrykin, I. S., Korchagin, V. I., Casetti-Dinescu, D. I., Girard, T.,. . . Maitra, D. (2012). Global gravitationally organized spiral waves and the structure of NGC 5247.,
427(3), 1983–1993.  doi:10.1111/j.1365-2966.2012.22031.x. arXiv: 1209.2879 [astro-ph.CO]

Grants2018 – 2019

[PI, Co-evolution of quasars and the intergalactic medium at high redshifts
1 million rubles grant for young scientists, Russian Foundation for Basic Research (RFBR)

2017 – 2018[Co-PI, Probing the reionization epoch and the high redshift IGM
Joint Russian/Indian grant, RFBR, PIs: Vasiliev E./ Sethi S.

Selected Meetings
2019[

Talk at “Cosmic Evolution of Quasars: from the First Light to Local Relics", Beĳing, CH

2018

[

Talk at “IGM2018: Revealing Cosmology & Reionization History with the IGM", Tokyo, JP2017[

Talk at “National Russian Astrophysical Conference", Yalta, RU

2016

[

Talk at “From Wall to Web" conference (member of LOC), Berlin, DE

2015

[

Talk at “The Olympian Symposium: Cosmology and the EoR", Paralia Katerinis, GR2014[Talk at “Intergalactic Matters" Workshop, Heidelberg, DESkills & Miscellaneous
Programming codes[Python, C, Fortran 77/90

Numerical expertise[MCMC and statistical analysis, radiative transfer algorithms,
hydrodynamical codes

Spoken languages[Russian (native), English (ﬂuent), German, Japanese (both basic)

Teaching experience[”Introduction to Astronomy" for B.Ss/M.Ss students”Introduction to Astronomy" for high-school students”How to teach astronomy in school" for high school teachers

Observing experience[6 nights at 2.5m DuPont Telescope, Las Campanas Obs., ChileService[Referee ApJ
LOC member: “Intergalactic Matters" workshop, Heidelberg, DE [ June 2014]
LOC member: “From Wall to Web" conference, Berlin, DE[ July 2016]
Co-organizer: Kavli IPMU Astro Lunch Seminar[2021 – · · ·]Public outreach[Delivered public lectures at Festival of Science, RU“Astronomy on Tap" organizer, Rostov-on-Don, RU
Co-host of the podcast about astronomy on Clubhouse[Fall 2013][Fall 2016][Fall 2017][2017–2018][2017–2019][2021 – · · ·]References
Dr. Joseph F. Hennawi
Associate professor
UCSB / Leiden University,
Broida Hall, Santa Barbara,CA 93106-9530, USA.
joe@physics.ucsb.edu

Dr. Matthew McQuinn
Assistant professor
University of Washington,
3910 15th Ave NE, Seattle,
WA 98195-1580 USA.
mcquinn@uw.edu

Dr. Khee-Gan Lee
Dr. Gabor Worseck
Assistant professor
Senior postdoctoral researcher
Kavli IPMU (University of Tokyo), University of Potsdam,
5-1-5 Kashiwanoha, Kashiwa,
Karl-Liebknecht-Str.24/25,277-8583, Japan.
Potsdam/Golm, 14476, Germany.
kglee@ipmu.jp

Dr. Evgenii O. Vasiliev
Leading researcher
Southern Federal University,
Stachki Avenue 194, Rostov-on-Don
344090, Russia.
eugstar@mail.ru

gworseck@uni-potsdam.de