Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Nikolay Kacharov"'
Autor:
Dalal El Youssoufi, Maria-Rosa L Cioni, Nikolay Kacharov, Cameron P M Bell, Gal Matjević, Kenji Bekki, Richard de Grijs, Valentin D Ivanov, Jacco Th van Loon
We present a kinematic analysis of the Small Magellanic Cloud using 3700 spectra extracted from the European Southern Observatory archive. We used data from Gaia and near-infrared photometry to select stellar populations and discard Galactic foregrou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03999f1739c8e53922be1f29a4ab9a58
Autor:
Roelof de Jong, Olga Bellido-Tirado, Joar . Brynnel, Aida Ezzati Amini, Steffen Frey, Christine Füßlein, Miklos Gäbler, Domenico Giannone, Diana Johl, Silke Kuba, Ulrike Lemke, Genoveva Micheva, Allar Saviauk, Matthias Steinmetz, Jakob C. Walcher, Roland Winkler, Karin Lind, Jonathan Loveday, Sofia Feltzing, Richard McMahon, Vincenzo Mainieri, Jean-François Pirard, Thomas Bensby, Maria Bergemann, Cristina Chiappini, Norbert Christlieb, Maria-Rosa Cioni, Johan Comparat, Simon Driver, Isobel Hook, Mike Irwin, Jean-Paul Kneib, Jochen Liske, Andrea Merloni, Ivan Minchev, Johan Richard, Else Starkenburg, Mark Sullivan, Clare Worley, Wolfgang Gaessler, Florance Laurent, Johan Pragt, Alban Remillieux, Florian Rothmaier, Scott Smedley, Ingo Stilz, Nicholas Walton, David M. Alexander, Ross Church, Scott Croom, Luke J. Davies, Caroline Heneka, Nikolay Kacharov, Jörg Knoche, Georges Kordopatis, Mirko Krumpe, Sarah Martell, Peder Norberg, Ingrid Pelisoli, Sanjib Sharma, Jesper Storm, Elmo Tempel
Publikováno v:
Ground-based and Airborne Instrumentation for Astronomy IX.
4MOST is a new high-multiplex, wide-field spectroscopic survey facility under construction for ESO's 4m-VISTA telescope at Paranal, Chile. Its key specifications are: a large field of view of 4.4 square degrees, a high multiplex fibre positioner base
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df202403be9e044d2b4c4947f2a98912
https://doi.org/10.1117/12.2628965
https://doi.org/10.1117/12.2628965
Autor:
Nikolay Kacharov, Mayte Alfaro-Cuello, Nadine Neumayer, Nora Lützgendorf, Laura L. Watkins, Alessandra Mastrobuono-Battisti, Sebastian Kamann, Glenn van de Ven, Anil C. Seth, Karina T. Voggel, Iskren Y. Georgiev, Ryan Leaman, Paolo Bianchini, Torsten Böker, Steffen Mieske
We present comprehensive multi-component dynamical models of M54 (NGC6715), the nuclear star cluster of the Sagittarius dwarf galaxy (Sgr), which is undergoing a tidal disruption in the Milky Way halo. Previous papers in the series used a large MUSE
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f369da9d3126a3f0ee3927b283188488
Autor:
S. Taibi, Nikolay Kacharov, Manuela Zoccali, Giuseppina Battaglia, Pascale Jablonka, Marina Rejkuba, Ryan Leaman, G. Iorio
Publikováno v:
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 635, pp.A152. ⟨10.1051/0004-6361/201937240⟩
Astronomy and Astrophysics-A&A, EDP Sciences, 2020, 635, pp.A152. ⟨10.1051/0004-6361/201937240⟩
Isolated Local Group (LG) dwarf galaxies have evolved most or all of their life unaffected by interactions with the large LG spirals and therefore offer the opportunity to learn about the intrinsic characteristics of this class of objects. Here we ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3d5ba26b7c2b9309122465aeba0a818
https://hal.archives-ouvertes.fr/hal-03257673
https://hal.archives-ouvertes.fr/hal-03257673
Autor:
Christian H. Hannah, Anil C. Seth, Dieu D. Nguyen, Antoine Dumont, Nikolay Kacharov, Nadine Neumayer, Mark den Brok
Publikováno v:
The Astronomical Journal. 162:281
The formation of nuclear star clusters (NSCs) remains an open question. In this work, we use spatially resolved HST/STIS spectroscopic observations of three nearby NSCs (hosted by NGC 5102, NGC 5206, and NGC 205) to constrain their formation historie
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fe98d5f03c30cc91bf460c4b5b6c52d
https://doi.org/10.3847/1538-3881/ac282e
https://doi.org/10.3847/1538-3881/ac282e
Autor:
Renuka Pechetti, Mark den Brok, Iskren Y. Georgiev, Nikolay Kacharov, Nadine Neumayer, Anil C. Seth
Publikováno v:
The Astrophysical Journal. 900:32
Nuclear Star Clusters (NSCs) are dense clusters of stars that reside in the centers of a majority of the galaxies. In this paper, we study the density profiles for 29 galaxies in a volume-limited survey within 10 Mpc to characterize their NSCs. These
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::86cfe168d6264dc16e39f15003cd2457
https://doi.org/10.3847/1538-4357/abaaa7
https://doi.org/10.3847/1538-4357/abaaa7
Publikováno v:
Astronomy and Astrophysics
Globular clusters (GCs) and their dynamic interactions with the Galactic components provide an important insight into the structure and formation of the early Milky Way. Here, we present a kinematic study of two outer halo GCs based on a combination
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::406a72d306bdee1aff79ba0ac3d6fcf3
http://arxiv.org/abs/1805.06894
http://arxiv.org/abs/1805.06894
Autor:
S. Taibi, Pascale Jablonka, Manuela Zoccali, Eline Tolstoy, Ryan Leaman, Marina Rejkuba, Nikolay Kacharov, Mike Irwin, Giuseppina Battaglia
Publikováno v:
Astronomy and Astrophysics
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2018, 618, pp.A122. ⟨10.1051/0004-6361/201833414⟩
Astronomy & astrophysics, 618:A122. EDP Sciences
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2018, 618, pp.A122. ⟨10.1051/0004-6361/201833414⟩
Astronomy & astrophysics, 618:A122. EDP Sciences
Context. The great majority of early-type dwarf galaxies, in the Local Group as well as in other galaxy groups, are found in the vicinity of much larger galaxies, making it hard to disentangle the role of internal versus external effects in driving t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::935a16689d1afcfa26c1706682de1748
https://hdl.handle.net/21.11116/0000-0005-CACA-4
https://hdl.handle.net/21.11116/0000-0005-CACA-4
Autor:
Renuka Pechetti, Nikolay Kacharov, Anil C. Seth, Phuong M. Nguyen, Karina T. Voggel, Evangelia Tremou, Nadine Neumayer, Mark den Brok, Arash Bahramian, Fabio Pacucci, Kouichiro Nakanishi, Michele Cappellari, Jay Strader, Laura Chomiuk, Dieu D. Nguyen, Cuc K. Ly, Satoru Iguchi, Takafumi Tsukui, Christopher P. Ahn, Antoine Dumont
Publikováno v:
The Astrophysical Journal
We improve the dynamical black hole (BH) mass estimates in three nearby low-mass early-type galaxies--NGC 205, NGC 5102, and NGC 5206. We use new \hst/STIS spectroscopy to fit the star formation histories of the nuclei in these galaxies, and use thes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11091922f5f97f652c793145d81f54fb
https://doi.org/10.3847/1538-4357/aafe7a
https://doi.org/10.3847/1538-4357/aafe7a
Publikováno v:
NASA Astrophysics Data System
Understanding the properties of dwarf galaxies is important not only to put them in their proper cosmological context, but also to understand the formation and evolution of the most common type of galaxies. Dwarf galaxies are divided into two main cl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6836a6a828be3584f3aa37d38f06cc06
http://arxiv.org/abs/1608.05600
http://arxiv.org/abs/1608.05600