Related papers: GRAVITY spectro-interferometric study of the massi…

The size-luminosity relation of local active galactic nuclei from interferometric observations of the broad-line region

By using the GRAVITY instrument with the near-infrared (NIR) Very Large Telescope Interferometer (VLTI), the structure of the broad (emission-)line region (BLR) in active galactic nuclei (AGNs) can be spatially resolved, allowing the…

Astrophysics of Galaxies · Physics 2024-01-17 GRAVITY Collaboration , A. Amorim , G. Bourdarot , W. Brandner , Y. Cao , Y. Clénet , R. Davies , P. T. de Zeeuw , J. Dexter , A. Drescher , A. Eckart , F. Eisenhauer , M. Fabricius , H. Feuchtgruber , N. M. Förster Schreiber , P. J. V. Garcia , R. Genzel , S. Gillessen , D. Gratadour , S. Hönig , M. Kishimoto , S. Lacour , D. Lutz , F. Millour , H. Netzer , T. Ott , T. Paumard , K. Perraut , G. Perrin , B. M. Peterson , P. O. Petrucci , O. Pfuhl , M. A. Prieto , S. Rabien , D. Rouan , D. J. D. Santos , J. Shangguan , T. Shimizu , A. Sternberg , C. Straubmeier , E. Sturm , L. J. Tacconi , K. R. W. Tristram , F. Widmann , J. Woillez

Optical spectroscopy of X-Mega targets in the Carina Nebula - V. The spectroscopic binary HD93161A and its visual companion HD93161B

We present the analysis of an extensive set of high resolution spectroscopic observations of HD93161, a visual binary with a separation of 2 arcsec. HD93161 A is a spectroscopic binary, with both components clearly detected throughout the…

Astrophysics · Physics 2009-11-10 Y. Naze , I. I. Antokhin , H. Sana , E. Gosset , G. Rauw

The GRAVITY young stellar object survey XII. The hot gas disk component in Herbig Ae/Be stars

The region of protoplanetary disks closest to a star (within 1-2\,au) is shaped by a number of different processes, from accretion of the disk material onto the central star to ejection in the form of winds and jets. Optical and near-IR…

Solar and Stellar Astrophysics · Physics 2024-01-17 GRAVITY Collaboration , R. Garcia Lopez , A. Natta , R. Fedriani , A. Caratti o Garatti , J. Sanchez-Bermudez , K. Perraut , C. Dougados , Y. -I. Bouarour , J. Bouvier , W. Brandner , P. Garcia , M. Koutoulaki , L. Labadie , H. Linz , E. Al'ecian , M. Benisty , J. -P. Berger , G. Bourdarot , P. Caselli , Y. Clenet , P. T. de Zeeuw , R. Davies , A. Eckart , F. Eisenhauer , N. M. Forster-Schreiber , E. Gendron , S. Gillessen , S. Grant , Th. Henning , P. Kervella , S. Lacour , V. Lapeyrère , J. -B. Le Bouquin , D. Lutz , F. Mang , H. Nowacki , T. Ott , T. Paumard , G. Perrin , J. Shangguan , T. Shimizu , A. Soulain , C. Straubmeier , E. Sturm , L. Tacconi , E. F. van Dishoeck , F. Vincent , F. Widmann

Improved GRAVITY astrometric accuracy from modeling of optical aberrations

The GRAVITY instrument on the ESO VLTI pioneers the field of high-precision near-infrared interferometry by providing astrometry at the $10 - 100\,\mu$as level. Measurements at such high precision crucially depend on the control of…

Astrophysics of Galaxies · Physics 2021-03-10 GRAVITY Collaboration , R. Abuter , A. Amorim , M. Bauböck , J. P. Berger , H. Bonnet , W. Brandner , Y. Clénet , R. Davies , P. T. de Zeeuw , J. Dexter , Y. Dallilar , A. Drescher , A. Eckart , F. Eisenhauer , N. M. Förster Schreiber , P. Garcia , F. Gao , E. Gendron , R. Genzel , S. Gillessen , M. Habibi , X. Haubois , G. Heißel , T. Henning , S. Hippler , M. Horrobin , A. Jiménez-Rosales , L. Jochum , L. Jocou , A. Kaufer , P. Kervella , S. Lacour , V. Lapeyrère , J. -B. Le Bouquin , P. Léna , D. Lutz , M. Nowak , T. Ott , T. Paumard , K. Perraut , G. Perrin , O. Pfuhl , S. Rabien , G. Rodríguez-Coira , J. Shangguan , T. Shimizu , S. Scheithauer , J. Stadler , O. Straub , C. Straubmeier , E. Sturm , L. J. Tacconi , F. Vincent , S. von Fellenberg , I. Waisberg , F. Widmann , E. Wieprecht , E. Wiezorrek , J. Woillez , S. Yazici , A. Young , G. Zinsınst{9}

VERITAS Observations of the gamma-Ray Binary LS I +61 303

LS I +61 303 is one of only a few high-mass X-ray binaries currently detected at high significance in very high energy gamma-rays. The system was observed over several orbital cycles (between September 2006 and February 2007) with the…

Astrophysics · Physics 2009-11-13 V. A. Acciari , M. Beilicke , G. Blaylock , S. M. Bradbury , J. H. Buckley , V. Bugaev , Y. Butt , K. L. Byrum , O. Celik , A. Cesarini , L. Ciupik , Y. C. K. Chow , P. Cogan , P. Colin , W. Cui , M. K. Daniel , C. Duke , T. Ergin , A. D. Falcone , S. J. Fegan , J. P. Finley , P. Fortin , L. F. Fortson , D. Gall , K. Gibbs , G. H. Gillanders , J. Grube R. Guenette , D. Hanna , E. Hays , J. Holder , D. Horan , S. B. Hughes , C. M. Hui , T. B. Humensky , P. Kaaret , D. B. Kieda , J. Kildea , A. Konopelko , H. Krawczynski , F. Krennrich , M. J. Lang , S. LeBohec , K. Lee , G. Maier , A. McCann , M. McCutcheon , J. Millis , P. Moriarty , R. Mukherjee , T. Nagai , R. A. Ong , D. Pandel , J. S. Perkins , F. Pizlo , M. Pohl , J. Quinn , K. Ragan , P. T. Reynolds , H. J. Rose , M. Schroedter , G. H. Sembroski , A. W. Smith , D. Steele , S. P. Swordy , J. A. Toner , L. Valcarcel , V. V. Vassiliev , R. Wagner , S. P. Wakely , J. E. Ward , T. C. Weekes , A. Weinstein , R. J. White , D. A. Williams , S. A. Wissel , M. Wood , B. Zitzer

The high-energy emission from HD~93129A near periastron

We conducted an observational campaign towards one of the most massive and luminous colliding wind binaries in the Galaxy, HD~93129A, close to its periastron passage in 2018. During this time the source was predicted to be in its maximum of…

High Energy Astrophysical Phenomena · Physics 2020-05-20 S. del Palacio , F. García , D. Altamirano , R. H. Barbá , V. Bosch-Ramon , M. Corcoran , M. De Becker , K. Hamaguchi , J. Maíz Apellániz , P. Munar Adrover , J. M. Paredes , G. E. Romero , H. Sana , M. Tavani , A. ud-Doula

The Fringe Detection Laser Metrology for the GRAVITY Interferometer at the VLTI

Interferometric measurements of optical path length differences of stars over large baselines can deliver extremely accurate astrometric data. The interferometer GRAVITY will simultaneously measure two objects in the field of view of the…

Instrumentation and Methods for Astrophysics · Physics 2015-05-19 H. Bartko , S. Gillessen , S. Rabien , M. Thiel , A. Gräter , M. Haug , S. Kellner , F. Eisenhauer , S. Lacour , C. Straubmeier , J. -P. Berger , L. Jocou , W. Chibani , S. Lüst , D. Moch , O. Pfuhl , W. Fabian , C. Araujo-Hauck , K. Perraut , W. Brandner , G. Perrin , A. Amorim

First VLTI/GRAVITY Observations of HIP 65426 b: Evidence for a Low or Moderate Orbital Eccentricity

Giant exoplanets have been directly imaged over orders of magnitude of orbital separations, prompting theoretical and observational investigations of their formation pathways. In this paper, we present new VLTI/GRAVITY astrometric data of…

Earth and Planetary Astrophysics · Physics 2023-10-10 S. Blunt , W. O. Balmer , J. J. Wang , S. Lacour , S. Petrus , G. Bourdarot , J. Kammerer , N. Pourré , E. Rickman , J. Shangguan , T. Winterhalder , R. Abuter , A. Amorim , R. Asensio-Torres , M. Benisty , J. -P. Berger , H. Beust , A. Boccaletti , A. Bohn , M. Bonnefoy , H. Bonnet , W. Brandner , F. Cantalloube , P. Caselli , B. Charnay , G. Chauvin , A. Chavez , E. Choquet , V. Christiaens , Y. Clénet , V. Coudé du Foresto , A. Cridland , R. Dembet , A. Drescher , G. Duvert , A. Eckart , F. Eisenhauer , H. Feuchtgruber , P. Garcia , R. Garcia Lopez , E. Gendron , R. Genzel , S. Gillessen , J. H. Girard , X. Haubois , G. Heißel , Th. Henning , S. Hinkley , S. Hippler , M. Horrobin , M. Houllé , Z. Hubert , L. Jocou , M. Keppler , P. Kervella , L. Kreidberg , A. -M. Lagrange , V. Lapeyrère , J. -B. Le Bouquin , P. Léna , D. Lutz , A. -L. Maire , F. Mang , G. -D. Marleau , A. Mérand , P. Mollière , J. D. Monnier , C. Mordasini , D. Mouillet , E. Nasedkin , M. Nowak , T. Ott , G. P. P. L. Otten , C. Paladini , T. Paumard , K. Perraut , G. Perrin , O. Pfuhl , L. Pueyo , J. Rameau , L. Rodet , Z. Rustamkulov , T. Shimizu , D. Sing , T. Stolker , C. Straubmeier , E. Sturm , L. J. Tacconi , E. F. van Dishoeck , A. Vigan , F. Vincent , K. Ward-Duong , F. Widmann , E. Wieprecht , E. Wiezorrek , J. Woillez , S. Yazici , A. Young

The GRAVITY metrology system: modeling a metrology in optical fibers

GRAVITY is the second generation VLT Interferometer (VLTI) instrument for high-precision narrow-angle astrometry and phase-referenced interferometric imaging. The laser metrology system of GRAVITY is at the heart of its astrometric mode,…

Instrumentation and Methods for Astrophysics · Physics 2014-08-07 N. Blind , H. Huber , F. Eisenhauer , J. Weber , S. Gillessen , M. Lippa , L. Burtscher , O. Hans , M. Haug , F. Haussmann , S. Huber , A. Janssen , S. Kellner , Y. Kok , T. Ott , O. Pfuhl , E. Sturm , E. Wieprecht , A. Amorim , W. Brandner , G. Perrin , K. Perraut , C. Straubmeier

Near-Infrared interferometry of Eta Carinae with high spatial and spectral resolution using the VLTI and the AMBER instrument

We present the first NIR spectro-interferometry of the LBV Eta Carinae. The K band observations were performed with the AMBER instrument of the ESO Very Large Telescope Interferometer using three 8.2m Unit Telescopes with baselines from 42…

Astrophysics · Physics 2009-11-11 G. Weigelt

Galactic Sources Science With Agile: The Case Of The Carina Region

During its first 2 years of operation, the gamma-ray AGILE satellite accumulated an extensive dataset for the Galactic plane. The data have been monitored for transient sources and several gamma-ray sources were detected. Their variability…

High Energy Astrophysical Phenomena · Physics 2012-02-03 S. Sabatini , M. Tavani , E. Pian , A. Bulgarelli , P. Caraveo , R. Viotti , M. F. Corcoran , A. Giuliani , C. Pittori , F. Verrecchia , S. Vercellone , S. Mereghetti , A. Argan , G. Barbiellini , F. Boffelli , P. W. Cattaneo , A. W. Chen , V. Cocco , F. D'Ammando , E. Costa , G. De Paris , E. Del Monte , G. Di Cocco , I. Donnarumma , Y. Evangelista , A. Ferrari , M. Feroci , M. Fiorini , T. Froysland , F. Fuschino , M. Galli , F. Gianotti , C. Labanti , I. Lapshov , F. Lazzarotto , P. Lipari , F. Longo , M. Marisaldi , M. Mastropietro , E. Morelli , E. Moretti , A. Morselli , L. Pacciani , A. Pellizzoni , F. Perotti , G. Piano , P. Picozza , M. Pilia , G. Porrovecchio , G. Pucella , M. Prest , M. Rapisarda , A. Rappoldi , A. Rubini , P. Soffitta , M. Trifoglio , A. Trois , E. Vallazza , V. Vittorini , A. Zambra , D. Zanello , P. Santolamazza , P. Giommi , S. Colafrancesco , L. A. Antonelli , L. Salotti

GeV emission from a compact binary merger

An energetic $\rm \gamma$-ray burst (GRB), GRB 211211A, was observed on 2021 December 11 by the Neil Gehrels Swift Observatory. Despite its long duration, typically associated with bursts produced by the collapse of massive stars, the…

High Energy Astrophysical Phenomena · Physics 2025-02-18 Alessio Mei , Biswajit Banerjee , Gor Oganesyan , Om Sharan Salafia , Stefano Giarratana , Marica Branchesi , Paolo D'Avanzo , Sergio Campana , Giancarlo Ghirlanda , Samuele Ronchini , Amit Shukla , Pawan Tiwari

Tracing jet emission at the base of a high-mass YSO. First AMBER/VLTI observations of the Br\gamma emission in IRAS 13481-6124

To probe the circumstellar environment of IRAS 13481-6124, a 20 M_sun high-mass young stellar object (HMYSO) with a parsec-scale jet and accretion disc, we investigate the origin of its Br\gamma-emission line through NIR interferometry. We…

Solar and Stellar Astrophysics · Physics 2016-04-06 A. Caratti o Garatti , B. Stecklum , G. Weigelt , D. Schertl , K. -H. Hofmann , S. Kraus , R. D. Oudmaijer , W. J. de Wit , A. Sanna , R. Garcia Lopez , A. Kreplin , T. P. Ray

High Spectral Resolution X-ray Observations of the Evolved Supermassive Stellar Binary System $\eta$ Carinae - Iron K$\alpha$ Band Profile Revealed with XRISM

The supermassive binary system, $\eta$ Carinae, is experiencing enormous wind-driven mass loss at a rate unparalleled in the rest of the Galaxy. Their wind-wind collision (WWC) continuously produces shock heated, X-ray emitting plasmas. The…

High Energy Astrophysical Phenomena · Physics 2026-02-27 XRISM Collaboration , Marc Audard , Hisamitsu Awaki , Ralf Ballhausen , Aya Bamba , Ehud Behar , Rozenn Boissay-Malaquin , Laura Brenneman , Gregory V. Brown , Michael F. Corcoran , Lia Corrales , Elisa Costantini , Renata Cumbee , Maria Diaz Trigo , Chris Done , Tadayasu Dotani , Ken Ebisawa , Megan E. Eckart , Dominique Eckert , Satoshi Eguchi , Teruaki Enoto , Yuichiro Ezoe , Adam Foster , Ryuichi Fujimoto , Yutaka Fujita , Yasushi Fukazawa , Kotaro Fukushima , Akihiro Furuzawa , Luigi Gallo , Javier A. Garcia , Emi Goto , Liyi Gu , Matteo Guainazzi , Kouichi Hagino , Kenji Hamaguchi , Isamu Hatsukade , Katsuhiro Hayashi , Takayuki Hayashi , Natalie Hell , Edmund Hodges-Kluck , Ann Hornschemeier , Yuto Ichinohe , Shun Inoue , Daiki Ishi , Manabu Ishida , Yukiko Ishihara , Kumi Ishikawa , Yoshitaka Ishisaki , Francisco Junqueira , Jelle Kaastra , Timothy Kallman , Yoshiaki Kanemaru , Erin Kara , Satoru Katsuda , Richard L. Kelley , Caroline A. Kilbourne , Shunji Kitamoto , Shogo Kobayashi , Takayoshi Kohmura , Aya Kubota , Maurice Leutenegger , Michael Loewenstein , Yoshitomo Maeda , Maxim Markevitch , Hironori Matsumoto , Kyoko Matsushita , Dan McCammon , Brian McNamara , Francois Mernier , Bert Vander Meulen , Eric D. Miller , Jon M. Miller , Ikuyuki Mitsuishi , Asca Miyamoto , Misaki Mizumoto , Tsunefumi Mizuno , Koji Mori , Koji Mukai , Hiroshi Murakami , Richard Mushotzky , Hiroshi Nakajima , Kazuhiro Nakazawa , Jan-Uwe Ness , Kumiko Nobukawa , Masayoshi Nobukawa , Hirofumi Noda , Hirokazu Odaka , Shoji Ogawa , Anna Ogorzalek , Takashi Okajima , Naomi Ota , Stephane Paltani , Robert Petre , Paul Plucinsky , Frederick S. Porter , Katja Pottschmidt , Kosuke Sato , Toshiki Sato , Makoto Sawada , Hiromi Seta , Megumi Shidatsu , Aurora Simionescu , Randall Smith , Hiromasa Suzuki , Andrew Szymkowiak , Hiromitsu Takahashi , Mai Takeo , Toru Tamagawa , Keisuke Tamura , Takaaki Tanaka , Atsushi Tanimoto , Makoto Tashiro , Yukikatsu Terada , Yuichi Terashima , Yohko Tsuboi , Masahiro Tsujimoto , Hiroshi Tsunemi , Takeshi Tsuru , Aysegul Tumer , Hiroyuki Uchida , Nagomi Uchida , Yuusuke Uchida , Hideki Uchiyama , Shutaro Ueda , Yoshihiro Ueda , Shinichiro Uno , Jacco Vink , Shin Watanabe , Brian J. Williams , Satoshi Yamada , Shinya Yamada , Hiroya Yamaguchi , Kazutaka Yamaoka , Noriko Yamasaki , Makoto Yamauchi , Shigeo Yamauchi , Tahir Yaqoob , Tomokage Yoneyama , Tessei Yoshida , Mihoko Yukita , Irina Zhuravleva

The Carina High-Contrast Imaging Project for massive Stars (CHIPS) I. Methodology and proof of concept on QZ Car ($\equiv$ HD93206)

Massive stars like company. However, low-mass companions have remained extremely difficult to detect at angular separations ($\rho$) smaller than 1" (~1000-3000 au considering typical distance to nearby massive stars) given the large…

Solar and Stellar Astrophysics · Physics 2021-11-25 A. Rainot , M. Reggiani , H. Sana , J. Bodensteiner , C. A. Gomez-Gonzalez , O. Absil , V. Christiaens , P. Delorme , L. A. Almeida , S. Caballero-Nieves , J. De Ridder , K. Kratter , S. Lacour , J. -B. Le Bouquin , L. Pueyo , H. Zinnecker

VLTI-GRAVITY observations of blazars

Parsec-scale jets of blazars have so far been spatially resolved only in millimeter and submillimeter wavelengths, where very long baseline interferometry can be used to obtain milliarcsecond-scale images of the jets. We have attempted to…

Astrophysics of Galaxies · Physics 2026-04-27 Talvikki Hovatta , Elina Lindfors , Heidi Korhonen , Preeti Kharb , Markus Wittkowski , Aaron Labdon , Tapio Pursimo , Kaj Wiik

Performance of astrometric detection of a hotspot orbiting on the innermost stable circular orbit of the galactic centre black hole

The galactic central black hole Sgr A* exhibits outbursts of radiation in the near infrared (so-called IR flares). One model of these events consists in a hotspot orbiting on the innermost stable circular orbit (ISCO) of the hole. These…

Astrophysics of Galaxies · Physics 2015-05-20 F. H. Vincent , T. Paumard , G. Perrin , L. Mugnier , F. Eisenhauer , S. Gillessen

Discovery of variable VHE gamma-ray emission from the binary system 1FGL J1018.6-5856

Re-observations with the H.E.S.S. telescope array of the very-high-energy (VHE) source HESS J1018-589 A coincident with the Fermi-LAT $\gamma$-ray binary 1FGL J1018.6-5856 have resulted in a source detection significance of more than…

High Energy Astrophysical Phenomena · Physics 2016-08-08 H. E. S. S. Collaboration , : , A. Abramowski , F. Aharonian , F. Ait Benkhali , A. G. Akhperjanian , E. O. Angüner , M. Backes , A. Balzer , Y. Becherini , J. Becker Tjus , D. Berge , S. Bernhard , K. Bernlöhr , E. Birsin , R. Blackwell , M. Böttcher , C. Boisson , J. Bolmont , P. Bordas , J. Bregeon , F. Brun , P. Brun , M. Bryan , T. Bulik , J. Carr , S. Casanova , N. Chakraborty , R. Chalme-Calvet , R. C. G. Chaves , A. Chen , M. Chrétien , S. Colafrancesco , G. Cologna , J. Conrad , C. Couturier , Y. Cui , I. D. Davids , B. Degrange , C. Deil , P. deWilt , A. Djannati-Ataï , W. Domainko , A. Donath , L. O'C. Drury , G. Dubus , K. Dutson , J. Dyks , M. Dyrda , T. Edwards , K. Egberts , P. Eger , J. -P. Ernenwein , P. Espigat , C. Farnier , S. Fegan , F. Feinstein , M. V. Fernandes , D. Fernandez , A. Fiasson , G. Fontaine , A. Förster , M. Füßling , S. Gabici , M. Gajdus , Y. A. Gallant , T. Garrigoux , G. Giavitto , B. Giebels , J. F. Glicenstein , D. Gottschall , A. Goyal , M. -H. Grondin , M. Grudzińska , D. Hadasch , S. Häffner , J. Hahn , J. Hawkes , G. Heinzelmann , G. Henri , G. Hermann , O. Hervet , A. Hillert , J. A. Hinton , W. Hofmann , P. Hofverberg , C. Hoischen , M. Holler , D. Horns , A. Ivascenko , A. Jacholkowska , C. Jahn , M. Jamrozy , M. Janiak , F. Jankowsky , I. Jung-Richardt , M. A. Kastendieck , K. Katarzyński , U. Katz , D. Kerszberg , B. Khélifi , M. Kieffer , S. Klepser , D. Klochkov , W. Kluźniak , D. Kolitzus , Nu. Komin , K. Kosack , S. Krakau , F. Krayzel , P. P. Krüger , H. Laffon , G. Lamanna , J. Lau , J. Lefaucheur , V. Lefranc , A. Lemière , M. Lemoine-Goumard , J. -P. Lenain , T. Lohse , A. Lopatin , C. -C. Lu , R. Lui , V. Marandon , A. Marcowith , C. Mariaud , R. Marx , G. Maurin , N. Maxted , M. Mayer , P. J. Meintjes , U. Menzler , M. Meyer , A. M. W. Mitchell , R. Moderski , M. Mohamed , K. Morå , E. Moulin , T. Murach , M. de Naurois , J. Niemiec , L. Oakes , H. Odaka , S. Öttl , S. Ohm , E. de Oña Wilhelmi , B. Opitz , M. Ostrowski , I. Oya , M. Panter , R. D. Parsons , M. Paz Arribas , N. W. Pekeur , G. Pelletier , P. -O. Petrucci , B. Peyaud , S. Pita , H. Poon , H. Prokoph , G. Pühlhofer , M. Punch , A. Quirrenbach , S. Raab , I. Reichardt , A. Reimer , O. Reimer , M. Renaud , R. de los Reyes , F. Rieger , C. Romoli , S. Rosier-Lees , G. Rowell , B. Rudak , C. B. Rulten , V. Sahakian , D. Salek , D. A. Sanchez , A. Santangelo , M. Sasaki , R. Schlickeiser , F. Schüssler , A. Schulz , U. Schwanke , S. Schwemmer , A. S. Seyffert , R. Simoni , H. Sol , F. Spanier , G. Spengler , F. Spies , Ł. Stawarz , R. Steenkamp , C. Stegmann , F. Stinzing , K. Stycz , I. Sushch , J. -P. Tavernet , T. Tavernier , A. M. Taylor , R. Terrier , M. Tluczykont , C. Trichard , K. Valerius , J. van der Walt , C. van Eldik , B. van Soelen , G. Vasileiadis , J. Veh , C. Venter , A. Viana , P. Vincent , J. Vink , F. Voisin , H. J. Völk , T. Vuillaume , S. J. Wagner , P. Wagner , R. M. Wagner , M. Weidinger , Q. Weitzel , R. White , A. Wierzcholska , P. Willmann , A. Wörnlein , D. Wouters , R. Yang , V. Zabalza , D. Zaborov , M. Zacharias , A. A. Zdziarski , A. Zech , F. Zefi , N. Żywucka

Optical spectroscopy of X-Mega targets in the Carina nebula - VII On the multiplicity of Tr 16-112, HD 93343 and HD 93250

We present the results of a spectroscopic monitoring campaign devoted to three O-type stars in the Carina nebula. We derive the full SB2 orbital solution of the binary system Tr 16-112, an exceptional dissymmetrical system consisting of an…

Solar and Stellar Astrophysics · Physics 2020-12-09 G. Rauw , Y. Nazé , E. Fernández Lajús , A. Lanotte , G. R. Solivella , H. Sana , E. Gosset

The Optical Gravitational Lensing Experiment. Miras and Semiregular Variables in the Large Magellanic Cloud

We use the OGLE-II and OGLE-III data in conjunction with the 2MASS near-infrared (NIR) photometry to identify and study Miras and Semiregular Variables (SRVs) in the Large Magellanic Cloud. We found in total 3221 variables of both types,…

Astrophysics · Physics 2007-05-23 I. Soszynski , A. Udalski , M. Kubiak , M. K. Szymanski , G. Pietrzynski , K. Zebrun , O. Szewczyk , L. Wyrzykowski , K. Ulaczyk