Honors & Awards


  • The Ernest Rutherford Fellowship, STFC (June 2016)
  • The Otto Hahn Medal, Max Planck Society (May 2013)
  • International Max Planck Research School fellowship, Max Planck Institute for Astrophysics (Sep 2008)

Professional Education


  • Doctor of Philosophy, Ludwig Maximilian Universitat Munchen (2011)
  • Educational Specialist, St Petersburg State University (2008)

Stanford Advisors


Current Research and Scholarly Interests


High-energy astrophysics, physics of intracluster medium, AGN feedback, turbulence, transport processes, high-resolution X-ray spectroscopy, radiative transfer

All Publications


  • Hitomi Constraints on the 3.5 keV Line in the Perseus Galaxy Cluster ASTROPHYSICAL JOURNAL LETTERS Aharonian, F. A., Akamatsu, H., Akimoto, F., Allen, S. W., Angelini, L., Arnaud, K. A., Audard, M., Awaki, H., Axelsson, M., Bamba, A., Bautz, M. W., Blandford, R. D., Bulbul, E., Brenneman, L. W., Brown, G. V., Cackett, E. M., Chernyakova, M., Chiao, M. P., Coppi, P., Costantini, E., de Plaa, J., den Herder, J., Done, C., Dotani, T., Ebisawa, K., Eckart, M. E., Enoto, T., Ezoe, Y., Fabian, A. C., Ferrigno, C., Foster, A. R., FUJIMOTO, R., Fukazawa, Y., Furuzawa, A., Galeazzi, M., Gallo, L. C., Gandhi, P., Giustini, M., Goldwurm, A., Gu, L., Guainazzi, M., Haba, Y., Hagino, K., Hamaguchi, K., Harrus, I., Hatsukade, I., Hayashi, K., Hayashi, T., HAYASHIDA, K., Hiraga, J., Hornschemeier, A. E., Hoshino, A., Hughes, J. P., Ichinohe, Y., Iizuka, R., Inoue, H., Inoue, S., Inoue, Y., Ishibashi, K., Ishida, M., Ishikawa, K., Ishisaki, Y., Itoh, M., Iwai, M., Iyomoto, N., Kaastra, J. S., Kallman, T., Kamae, T., Kara, E., Kataoka, J., Katsuda, S., Katsuta, J., Kawaharada, M., Kawai, N., Kelley, R. L., Khangulyan, D., Kilbourne, C. A., King, A. L., Kitaguchi, T., Kitamoto, S., Kitayama, T., KOHMURA, T., Kokubun, M., Koyama, S., Koyama, K., Kretschmar, P., Krimm, H. A., Kubota, A., Kunieda, H., Laurent, P., Lebrun, F., Lee, S., Leutenegger, M. A., Limousin, O., Loewenstein, M., Long, K. S., Lumb, D. H., Madejski, G. M., Maeda, Y., Maier, D., Makishima, K., Markevitch, M., Matsumoto, H., Matsushita, K., McCammon, D., McNamara, B. R., Mehdipour, M., Miller, E. D., MILLER, J. M., Mineshige, S., Mitsuda, K., Mitsuishi, I., Miyazawa, T., Mizuno, T., Mori, H., Mori, K., Moseley, H., Mukai, K., Murakami, H., Murakami, T., Mushotzky, R. F., Nakagawa, T., Nakajima, H., Nakamori, T., Nakano, T., Nakashima, S., Nakazawa, K., Nobukawa, K., Nobukawa, M., NODA, H., Nomachi, M., O'Dell, S. L., Odaka, H., Ohashi, T., Ohno, M., OKAJIMA, T., Ota, N., Ozaki, M., Paerels, F., Paltani, S., Parmar, A., Petre, R., Pinto, C., Pohl, M., Porter, F. S., Pottschmidt, K., Ramsey, B. D., Reynolds, C. S., Russell, H. R., Safi-Harb, S., Saito, S., Sakai, K., Sameshima, H., Sasaki, T., Sato, G., Sato, K., Sato, R., Sawada, M., Schartel, N., Serlemitsos, P. J., Seta, H., Shidatsu, M., Simionescu, A., Smith, R. K., Soong, Y., Stawarz, L., Sugawara, Y., Sugita, S., Szymkowiak, A. E., Tajima, H., Takahashi, H., Takahashi, T., Takeda, S., Takei, Y., Tamagawa, T., Tamura, K., Tamura, T., Tanaka, T., Tanaka, Y., Tanaka, Y., Tashiro, M., Tawara, Y., Terada, Y., Terashima, Y., Tombesi, F., Tomida, H., Tsuboi, Y., Tsujimoto, M., Tsunemi, H., Tsuru, T., Uchida, H., Uchiyama, H., Uchiyama, Y., Ueda, S., Ueda, Y., Ueno, S., Uno, S., Urry, C. M., Ursino, E., de Vries, C. P., Watanabe, S., Werner, N., Wik, D. R., WILKINS, D. R., Williams, B. J., Yamada, S., Yamaguchi, H., YAMAOKA, K., Yamasaki, N. Y., Yamauchi, M., Yamauchi, S., Yaqoob, T., Yatsu, Y., Yonetoku, D., Yoshida, A., Zhuravleva, I., Zoghbi, A. 2017; 837 (1)
  • Arithmetic with X-ray images of galaxy clusters: effective equation of state for small-scale perturbations in the ICM MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Churazov, E., Arevalo, P., Forman, W., Jones, C., Schekochihin, A., Vikhlinin, A., Zhuravleva, I. 2016; 463 (1): 1057-1067
  • Insights into the location and dynamics of the coolest X-ray emitting gas in clusters of galaxies MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Pinto, C., Fabian, A. C., Ogorzalek, A., Zhuravleva, I., Werner, N., Sanders, J., Zhang, Y., Gu, L., de Plaa, J., Ahoranta, J., Finoguenov, A., Johnstone, R., Canning, R. E. 2016; 461 (2): 2077-2084
  • Deep Chandra study of the truncated cool core of the Ophiuchus cluster MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Werner, N., Zhuravleva, I., Canning, R. E., Allen, S. W., King, A. L., Sanders, J. S., Simionescu, A., Taylor, G. B., Morris, R. G., Fabian, A. C. 2016; 460 (3): 2752-2764
  • The quiescent intracluster medium in the core of the Perseus cluster NATURE Aharonian, F., Akamatsu, H., Akimoto, F., Allen, S. W., Anabuki, N., Angelini, L., Arnaud, K., Audard, M., Awaki, H., Axelsson, M., Bamba, A., Bautz, M., Blandford, R., Brenneman, L., Brown, G. V., Bulbul, E., Cackett, E., Chernyakova, M., Chiao, M., Coppi, P., Costantini, E., de Plaa, J., den Herder, J., Done, C., Dotani, T., Ebisawa, K., Eckart, M., Enoto, T., Ezoe, Y., Fabian, A. C., Ferrigno, C., Foster, A., Fujimoto, R., Fukazawa, Y., Furuzawa, A., Galeazzi, M., Gallo, L., Gandhi, P., Giustini, M., Goldwurm, A., Gu, L., Guainazzi, M., Haba, Y., Hagino, K., Hamaguchi, K., Harrus, I., Hatsukade, I., Hayashi, K., Hayashi, T., Hayashida, K., Hiraga, J., Hornschemeier, A., Hoshino, A., Hughes, J., Iizuka, R., Inoue, H., Inoue, Y., Ishibashi, K., Ishida, M., Ishikawa, K., Ishisaki, Y., Itoh, M., Iyomoto, N., Kaastra, J., Kallman, T., Kamae, T., Kara, E., Kataoka, J., Katsuda, S., Katsuta, J., Kawaharada, M., Kawai, N., Kelley, R., Khangulyan, D., Kilbourne, C., King, A., Kitaguchi, T., Kitamoto, S., Kitayama, T., Kohmura, T., Kokubun, M., Koyama, S., Koyama, K., Kretschmar, P., Krimm, H., Kubota, A., Kunieda, H., Laurent, P., Lebrun, F., Lee, S., Leutenegger, M., Limousin, O., Loewenstein, M., Long, K. S., Lumb, D., Madejski, G., Maeda, Y., Maier, D., Makishima, K., Markevitch, M., Matsumoto, H., Matsushita, K., McCammon, D., McNamara, B., Mehdipour, M., Miller, E., Miller, J., Mineshige, S., Mitsuda, K., Mitsuishi, I., Miyazawa, T., Mizuno, T., Mori, H., Mori, K., Moseley, H., Mukai, K., Murakami, H., Murakami, T., Mushotzky, R., Nagino, R., Nakagawa, T., Nakajima, H., Nakamori, T., Nakano, T., Nakashima, S., Nakazawa, K., Nobukawa, M., Noda, H., Nomachi, M., O'Dell, S., Odaka, H., Ohashi, T., Ohno, M., Okajima, T., Ota, N., Ozaki, M., Paerels, F., Paltani, S., Parmar, A., Petre, R., Pinto, C., Pohl, M., Porter, F. S., Pottschmidt, K., Ramsey, B., Reynolds, C., Russell, H., Safi-Harb, S., Saito, S., Sakai, K., Sameshima, H., Sato, G., Sato, K., Sato, R., Sawada, M., Schartel, N., Serlemitsos, P., Seta, H., Shidatsu, M., Simionescu, A., Smith, R., Soong, Y., Stawarz, L., Sugawara, Y., Sugita, S., Szymkowiak, A., Tajima, H., Takahashi, H., Takahashi, T., Takeda, S., Takei, Y., Tamagawa, T., Tamura, K., Tamura, T., Tanaka, T., Tanaka, Y., Tanaka, Y., Tashiro, M., Tawara, Y., Terada, Y., Terashima, Y., Tombesi, F., Tomida, H., Tsuboi, Y., Tsujimoto, M., Tsunemi, H., Tsuru, T., Uchida, H., Uchiyama, H., Uchiyama, Y., Ueda, S., Ueda, Y., Ueno, S., Uno, S., Urry, M., Ursino, E., de Vries, C., Watanabe, S., Werner, N., Wik, D., Wilkins, D., Williams, B., Yamada, S., Yamaguchi, H., Yamaoka, K., Yamasaki, N. Y., Yamauchi, M., Yamauchi, S., Yaqoob, T., Yatsu, Y., Yonetoku, D., Yoshida, A., Yuasa, T., Zhuravleva, I., Zoghbi, A. 2016; 535 (7610): 117-?

    Abstract

    Clusters of galaxies are the most massive gravitationally bound objects in the Universe and are still forming. They are thus important probes of cosmological parameters and many astrophysical processes. However, knowledge of the dynamics of the pervasive hot gas, the mass of which is much larger than the combined mass of all the stars in the cluster, is lacking. Such knowledge would enable insights into the injection of mechanical energy by the central supermassive black hole and the use of hydrostatic equilibrium for determining cluster masses. X-rays from the core of the Perseus cluster are emitted by the 50-million-kelvin diffuse hot plasma filling its gravitational potential well. The active galactic nucleus of the central galaxy NGC 1275 is pumping jetted energy into the surrounding intracluster medium, creating buoyant bubbles filled with relativistic plasma. These bubbles probably induce motions in the intracluster medium and heat the inner gas, preventing runaway radiative cooling--a process known as active galactic nucleus feedback. Here we report X-ray observations of the core of the Perseus cluster, which reveal a remarkably quiescent atmosphere in which the gas has a line-of-sight velocity dispersion of 164 ± 10 kilometres per second in the region 30-60 kiloparsecs from the central nucleus. A gradient in the line-of-sight velocity of 150 ± 70 kilometres per second is found across the 60-kiloparsec image of the cluster core. Turbulent pressure support in the gas is four per cent of the thermodynamic pressure, with large-scale shear at most doubling this estimate. We infer that a total cluster mass determined from hydrostatic equilibrium in a central region would require little correction for turbulent pressure.

    View details for DOI 10.1038/nature18627

    View details for Web of Science ID 000379015600035

    View details for PubMedID 27383985

  • The nature and energetics of AGN-driven perturbations in the hot gas in the Perseus Cluster MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Zhuravleva, I., Churazov, E., Arevalo, P., Schekochihin, A. A., Forman, W. R., Allen, S. W., Simionescu, A., Sunyaev, R., Vikhlinin, A., Werner, N. 2016; 458 (3): 2902-2915
  • ON THE NATURE OF X-RAY SURFACE BRIGHTNESS FLUCTUATIONS IN M87 ASTROPHYSICAL JOURNAL Arevalo, P., Churazov, E., Zhuravleva, I., Forman, W. R., Jones, C. 2016; 818 (1)
  • MAPPING THE GAS TURBULENCE IN THE COMA CLUSTER: PREDICTIONS FOR ASTRO-H ASTROPHYSICAL JOURNAL ZuHone, J. A., Markevitch, M., Zhuravleva, I. 2016; 817 (2)
  • Deep Chandra observation and numerical studies of the nearest cluster cold front in the sky MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Werner, N., ZuHone, J. A., Zhuravleva, I., Ichinohe, Y., Simionescu, A., Allen, S. W., Markevitch, M., Fabian, A. C., Keshet, U., Roediger, E., Ruszkowski, M., Sanders, J. S. 2016; 455 (1): 846-858
  • A UNIFORM CONTRIBUTION OF CORE-COLLAPSE AND TYPE Ia SUPERNOVAE TO THE CHEMICAL ENRICHMENT PATTERN IN THE OUTSKIRTS OF THE VIRGO CLUSTER ASTROPHYSICAL JOURNAL LETTERS Simionescu, A., Werner, N., Urban, O., Allen, S. W., Ichinohe, Y., Zhuravleva, I. 2015; 811 (2)
  • Gas density fluctuations in the Perseus Cluster: clumping factor and velocity power spectrum MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Zhuravleva, I., Churazov, E., Arevalo, P., Schekochihin, A. A., Allen, S. W., Fabian, A. C., Forman, W. R., Sanders, J. S., Simionescu, A., Sunyaev, R., Vikhlinin, A., Werner, N. 2015; 450 (4): 4184-4197
  • Gas density fluctuations in the Perseus Cluster: clumping factor and velocity power spectrum Monthly Notices of the Royal Astronomical Society Zhuravleva, I., Churazov, E., Arevalo, P., Schekochihin, A. A., Allen, S. W., Fabian, A. C., Forman, W. R., Sanders, J. S., Simionescu, A., Sunyaev, R., Vikhlinin, A., Werner, N. 2015; 450 (4): 13

    View details for DOI 10.1093/mnras/stv900

  • Turbulent heating in galaxy clusters brightest in X-rays. Nature Zhuravleva, I., Churazov, E., Schekochihin, A. A., Allen, S. W., Arévalo, P., Fabian, A. C., Forman, W. R., Sanders, J. S., Simionescu, A., Sunyaev, R., Vikhlinin, A., Werner, N. 2014; 515 (7525): 85-87

    Abstract

    The hot (10(7) to 10(8) kelvin), X-ray-emitting intracluster medium (ICM) is the dominant baryonic constituent of clusters of galaxies. In the cores of many clusters, radiative energy losses from the ICM occur on timescales much shorter than the age of the system. Unchecked, this cooling would lead to massive accumulations of cold gas and vigorous star formation, in contradiction to observations. Various sources of energy capable of compensating for these cooling losses have been proposed, the most promising being heating by the supermassive black holes in the central galaxies, through inflation of bubbles of relativistic plasma. Regardless of the original source of energy, the question of how this energy is transferred to the ICM remains open. Here we present a plausible solution to this question based on deep X-ray data and a new data analysis method that enable us to evaluate directly the ICM heating rate from the dissipation of turbulence. We find that turbulent heating is sufficient to offset radiative cooling and indeed appears to balance it locally at each radius-it may therefore be the key element in resolving the gas cooling problem in cluster cores and, more universally, in the atmospheres of X-ray-emitting, gas-rich systems on scales from galaxy clusters to groups and elliptical galaxies.

    View details for DOI 10.1038/nature13830

    View details for PubMedID 25363764

  • Turbulent heating in galaxy clusters brightest in X-rays NATURE Zhuravleva, I., Churazov, E., Schekochihin, A. A., Allen, S. W., Arevalo, P., Fabian, A. C., Forman, W. R., Sanders, J. S., Simionescu, A., Sunyaev, R., Vikhlinin, A., Werner, N. 2014; 515 (7525): 85-?
  • The relation between gas density and velocity power spectra in galaxy clusters: High-resolution hydrodynamic simulations and the role of conduction ASTRONOMY & ASTROPHYSICS Gaspari, M., Churazov, E., Nagai, D., Lau, E. T., Zhuravleva, I. 2014; 569
  • Stellar kinematics of X-ray bright massive elliptical galaxies MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Lyskova, N., Churazov, E., Moiseev, A., Sil'chenko, O., Zhuravleva, I. 2014; 441 (3): 2013-2033
  • THE RELATION BETWEEN GAS DENSITY AND VELOCITY POWER SPECTRA IN GALAXY CLUSTERS: QUALITATIVE TREATMENT AND COSMOLOGICAL SIMULATIONS ASTROPHYSICAL JOURNAL LETTERS Zhuravleva, I., Churazov, E. M., Schekochihin, A. A., Lau, E. T., Nagai, D., Gaspari, M., Allen, S. W., Nelson, K., Parrish, I. J. 2014; 788 (1)
  • Azimuthally resolved X-ray spectroscopy to the edge of the Perseus Cluster MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Urban, O., Simionescu, A., Werner, N., Allen, S. W., Ehlert, S., Zhuravleva, I., Morris, R. G., Fabian, A. C., Mantz, A., Nulsen, P. E., Sanders, J. S., Takei, Y. 2014; 437 (4): 3939-3961
  • Resonant scattering in the Perseus Cluster: spectral model for constraining gas motions with Astro-H MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Zhuravleva, I., Churazov, E., Sunyaev, R., Sazonov, S., Allen, S. W., Werner, N., Simionescu, A., KONAMI, S., Ohashi, T. 2013; 435 (4): 3111-3121
  • DEEP CHANDRA OBSERVATIONS OF A2199: THE INTERPLAY BETWEEN MERGER-INDUCED GAS MOTIONS AND NUCLEAR OUTBURSTS IN A COOL CORE CLUSTER ASTROPHYSICAL JOURNAL Nulsen, P. E., Li, Z., Forman, W. R., Kraft, R. P., Lal, D. V., Jones, C., Zhuravleva, I., Churazov, E., Sanders, J. S., Fabian, A. C., Johnson, R. E., Murray, S. S. 2013; 775 (2)
  • Bias from gas inhomogeneities in the pressure profiles as measured from X-ray and Sunyaev-Zeldovich observations MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Khedekar, S., Churazov, E., Kravtsov, A., Zhuravleva, I., Lau, E. T., Nagai, D., Sunyaev, R. 2013; 431 (1): 954-965
  • Quantifying properties of ICM inhomogeneities MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Zhuravleva, I., Churazov, E., Kravtsov, A., Lau, E. T., Nagai, D., Sunyaev, R. 2013; 428 (4): 3274-3287
  • A Mexican hat with holes: calculating low-resolution power spectra from data with gaps MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Arevalo, P., Churazov, E., Zhuravleva, I., Hernandez-Monteagudo, C., Revnivtsev, M. 2012; 426 (3): 1793-1807
  • CHANDRA OBSERVATIONS OF NGC 4342, AN OPTICALLY FAINT, X-RAY GAS-RICH EARLY-TYPE GALAXY ASTROPHYSICAL JOURNAL Bogdan, A., Forman, W. R., Kraft, R. P., Jones, C., Blom, C., Randall, S. W., Zhang, Z., Zhuravleva, I., Churazov, E., Li, Z., Nulsen, P. E., Vikhlinin, A., Schindler, S. 2012; 755 (1)
  • EXPLORING THE UNUSUALLY HIGH BLACK-HOLE-TO-BULGE MASS RATIOS IN NGC 4342 AND NGC 4291: THE ASYNCHRONOUS GROWTH OF BULGES AND BLACK HOLES ASTROPHYSICAL JOURNAL Bogdan, A., Forman, W. R., Zhuravleva, I., Mihos, J. C., Kraft, R. P., Harding, P., Guo, Q., Li, Z., Churazov, E., Vikhlinin, A., Nulsen, P. E., Schindler, S., Jones, C. 2012; 753 (2)
  • Testing a simple recipe for estimating galaxy masses from minimal observational data MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Lyskova, N., Churazov, E., Zhuravleva, I., Naab, T., Oser, L., Gerhard, O., Wu, X. 2012; 423 (2): 1813-1824
  • Constraints on the ICM velocity power spectrum from the X-ray lines width and shift MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Zhuravleva, I., Churazov, E., Kravtsov, A., Sunyaev, R. 2012; 422 (3): 2712-2724
  • X-ray surface brightness and gas density fluctuations in the Coma cluster MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Churazov, E., Vikhlinin, A., Zhuravleva, I., Schekochihin, A., Parrish, I., Sunyaev, R., Forman, W., Boehringer, H., Randall, S. 2012; 421 (2): 1123-1135
  • Estimating turbulent velocities in the elliptical galaxies NGC 5044 and NGC 5813 ASTRONOMY & ASTROPHYSICS de Plaa, J., Zhuravleva, I., Werner, N., Kaastra, J. S., Churazov, E., Smith, R. K., Raassen, A. J., Grange, Y. G. 2012; 539
  • Resonant scattering in galaxy clusters for anisotropic gas motions on various spatial scales ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS Zhuravleva, I. V., Churazov, E. M., Sazonov, S. Y., Sunyaev, R. A., Dolag, K. 2011; 37 (3): 141-153
  • Steepening mass profiles, dark matter and environment of X-ray bright elliptical galaxies MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Das, P., Gerhard, O., Churazov, E., Zhuravleva, I. 2010; 409 (4): 1362-1378
  • Resonant Scattering of X-ray Emission Lines in the Hot Intergalactic Medium SPACE SCIENCE REVIEWS Churazov, E., Zhuravleva, I., Sazonov, S., Sunyaev, R. 2010; 157 (1-4): 193-209
  • Polarization of X-ray lines from galaxy clusters and elliptical galaxies - a way to measure the tangential component of gas velocity MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Zhuravleva, I. V., Churazov, E. M., Sazonov, S. Y., Sunyaev, R. A., Forman, W., Dolag, K. 2010; 403 (1): 129-150
  • Constraints on turbulent pressure in the X-ray haloes of giant elliptical galaxies from resonant scattering MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Werner, N., Zhuravleva, I., Churazov, E., Simionescu, A., Allen, S. W., Forman, W., Jones, C., Kaastra, J. S. 2009; 398 (1): 23-32
  • The Sunyaev-Zel'dovich effect in elliptical galaxies ASTRONOMY REPORTS Komberg, B. V., Nagirner, D. I., Zhuravleva, I. V. 2008; 52 (9): 707-713