Katsova Maria Mikhailovna General data:
Born: 25.09.1947
Place of birth: Moscow City, Moscow region, Russian SSR
Studied in: M. V. Lomonosov Moscow State University (1971);
Key interests: astrophysics, stellar photospheres, internal structure of stars, stellar catalogues, variable stars, stellar evolution. PhD Thesis: Manifestations of activity and features of the structure of the outer atmospheres of stars of late spectral classes (1983 ); ScD Thesis: Activity of stars of late spectral classes (1999 );
Biography:
She was born on September 25, 1947 in Moscow, Moscow region of the Russian SSR.
In 1971 she graduated from the Faculty of Physics of M. V. Lomonosov Moscow State University. Constantly works at the P.K. Sternberg State Astronomical Institute M. V. Lomonosov Moscow State University since 1967. Passed a scientific path from laboratory assistant to senior researcher.
In 1983 she defended her PhD thesis "Manifestations of activity and features of the structure of the outer atmospheres of stars of late spectral classes", and in 1999 her doctoral dissertation "Activity of stars of late spectral classes".
He currently holds the position of Deputy Head of the Department of Star Astrophysics of the P.K. Sternberg State Astronomical Institute M. V. Lomonosov Moscow State University. She has been a member of the International Astronomical Union since 2006 and a member of the European and Eurasian Astronomical Societies since 1990.
She is known as a specialist in the study of stellar activity and one of the founders of solar-stellar physics. The most important results are the detection of the period of axial rotation and cycle on the active component of the binary system a Aur (Capella) according to 15-year observations of the line He I 10830 Å, conducted at the Crimean Astrophysical Observatory together with A. G. Scherbakov. A homogeneous model of stellar crowns is built on the basis of X-ray observations. A gas-dynamic model of pulsed flashes on red dwarfs was developed, which allowed to explain the behavior of the resonant doublet C IV 1550 A, registered on the ASTRON spacecraft at the beginning of the stellar flare, as well as changes in Balmer's decree during these nonstationary processes. She took an active part in the creation of the "Catalog of flashing stars of the UV Cet type on the outskirts of the Sun", prepared at the Crimean Astrophysical Observatory under the direction of R. E. Gershberg.
Since the early 2000s, the work has been devoted to the comparative analysis of chromospheric and coronal activity indices of low-mass stars with long-term variability. It shows that the chromospheric activity of the modern Sun is slightly higher than that of thousands of cold stars of close age, while the solar corona is much weaker.
It has been found that the activity of the solar cycle with a regular cycle is established on a star of solar mass about 1 billion years old, when the period of axial rotation of the Sun reaches 10 days. The characteristics of the activity of such a young Sun are evaluated, in particular the possibility of the development of powerful non-stationary phenomena - superflashes, the total energy of which is 100-1000 times more than that of the largest modern solar flares.
She, along with M. A. Livshits proposed a scenario for the development of physical processes in superflashes based on ideas about the nature of modern solar flares. The research provides observational tests necessary for the further development of the theory of the dynamo. In addition, they are in demand in related fields of science, such as biology, paleontology, geology in the assessment of cosmic factors affecting the bio- and geosphere in the era of their formation.
In the 1970s and 1980s in collaboration with B. C. Sokolov, Yu. P. Popov, M. A. Livshits and Kosovych A. M. she developed the theory of gas-dynamic and MHD processes in solar and stellar flares based on numerical simulation methods.
In works performed since 2000 together with M. A. Livshits, considered the general problems of the evolution of the activity of low-mass stars, the physics of stellar flares.
She has about 120 scientific publications, one of which was awarded the MAIK Prize "Science/ Interperiodicals" in 2012.
Since 2005 she has been awarded the title of "Honored Researcher of Moscow University", was awarded the medal "In Memory of the 850th Anniversary of Moscow" in 1997 and "Veteran of Labor" in 1986.
Sources:
1 Àñòðîíîìû Ðîññèè 1917-2017/ íàó÷. ðåä. À.Ì.×åðåïàùóê, Êàçàíü, Êàçàí. ôåä. óí-ò, 2017.- 568 ñ- C.211
2 ÊÎÑÎÂÈ×Å Àëåêñàíäð Ãåîðãèåâè÷//Àñòðîíîìû Ðîññèè 1917-2017/ íàó÷. ðåä. À.Ì.×åðåïàùóê, Êàçàíü, Êàçàí. ôåä. óí-ò, 2017.- 568 ñ- C.234
3 ËÈÂØÈÖ Ìîèñåé Àéçèêîâè÷//Àñòðîíîìû Ðîññèè 1917-2017/ íàó÷. ðåä. À.Ì.×åðåïàùóê, Êàçàíü, Êàçàí. ôåä. óí-ò, 2017.- 568 ñ- C.270
