* zet Ori , the SIMBAD biblio

* zet Ori , the SIMBAD biblio (330 results) C.D.S. - SIMBAD4 rel 1.7 - 2020.10.22CEST12:18:07

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Title First 3 Authors
2020A&A...635A.163B 50           X         1 65 ~ A search for strong magnetic fields in massive and very massive stars in the Magellanic Clouds. BAGNULO S., WADE G.A., NAZE Y., et al.
2020A&A...636A..28M 170       D     X         4 28 ~ Spatially resolved spectroscopy of close massive visual binaries with HST/STIS. I. Seven O-type systems. MAIZ APELLANIZ J. and BARBA R.H.
2019A&A...626A..20M viz 2239     A D     X C       48 102 ~ MONOS: Multiplicity Of Northern O-type Spectroscopic systems. I. Project description and spectral classifications and visual multiplicity of previously known objects. MAIZ-APELLANIZ J., TRIGUEROS PAEZ E., NEGUERUELA I., et al.
2019A&A...628A.123Z 27 ~ Structure, kinematics, and ages of the young stellar populations in the Orion region. ZARI E., BROWN A.G.A. and DE ZEEUW P.T.
2019AJ....157...20O           X     *   1 22 ~ SMA line observations of the CH3OH-maser outflow in DR21(OH). OROZCO-AGUILERA M.T., HERNANDEZ-GOMEZ A. and ZAPATA L.A.
2019AJ....157...85B viz 140           X C       2 47 ~ The CIDA Variability Survey of Orion OB1 II. Demographics of the young, low-mass stellar populations. BRICENO C., CALVET N., HERNANDEZ J., et al.
2019MNRAS.490..274S 47           X         1 47 ~ The magnetic early B-type stars - III. A main-sequence magnetic, rotational, and magnetospheric biography. SHULTZ M.E., WADE G.A., RIVINIUS T., et al.
2019MNRAS.490.4194H 47           X         1 48 ~ What information can we derive from historical Far Eastern guest stars for modern research on novae and cataclysmic variables? HOFFMANN S.M.
2019RAA....19..120R 47           X         1 26 ~ Analysis of the X-ray emission of OB stars II: B stars. RYSPAEVA E. and KHOLTYGIN A.
2018A&A...610A..12B viz 90             C       6 10 2 Clustering the Orion B giant molecular cloud based on its molecular emission. BRON E., DAUDON C., PETY J., et al.
2018A&A...613A...9M viz 90           X         2 601 4 Optical-NIR dust extinction towards Galactic O stars. MAIZ-APELLANIZ J. and BARBA R.H.
2018A&A...615A.161M 3449     A D     X C       77 14 ~ Lucky Spectroscopy, an equivalent technique to Lucky Imaging. Spatially resolved spectroscopy of massive close visual binaries using the William Herschel Telescope. MAIZ-APELLANIZ J., BARBA R.H., SIMON-DIAZ S., et al.
2018ApJ...869...37G viz 45           X         1 17 ~ Angular sizes and effective temperatures of O-type stars from optical interferometry with the CHARA Array. GORDON K.D., GIES D.R., SCHAEFER G.H., et al.
2018ApJS..236...36R viz 18       D               1 139 ~ Abundances and depletions of neutron-capture elements in the interstellar medium. RITCHEY A.M., FEDERMAN S.R. and LAMBERT D.L.
2018MNRAS.475.5417R 45           X         1 18 ~ BRITE-Constellation reveals evidence for pulsations in the enigmatic binary η Carinae. RICHARDSON N.D., PABLO H., STERKEN C., et al.
2018RAA....18..104R 72     A     X         2 34 ~ Analysis of the X-ray emission of OB stars: O stars. RYSPAEVA E. and KHOLTYGIN A.
2017A&A...598A.124K 174           X         4 32 6 Orion revisited. III. The Orion Belt population. KUBIAK K., ALVES J., BOUY H., et al.
2017A&A...599A..98P 61       D   O X         2 28 27 The anatomy of the Orion B giant molecular cloud: A local template for studies of nearby galaxies. PETY J., GUZMAN V.V., ORKISZ J.H., et al.
2017A&A...599A..99O 131           X C       2 14 13 Turbulence and star formation efficiency in molecular clouds: solenoidal versus compressive motions in Orion B. ORKISZ J.H., PETY J., GERIN M., et al.
2017A&A...602A..91B 45           X         1 6 10 Studying the photometric and spectroscopic variability of the magnetic hot supergiant ζ Orionis Aa. BUYSSCHAERT B., NEINER C., RICHARDSON N.D., et al.
2017A&A...605A..26P 87               F     1 32 16 BRITE Constellation: data processing and photometry. POPOWICZ A., PIGULSKI A., BERNACKI K., et al.
2017ApJ...844..103T viz 1212 9 Orbit alignment in triple stars. TOKOVININ A.
2017MNRAS.465.3039C viz 44           X         1 55 22 Infrared spectroscopy of eruptive variable protostars from VVV. CONTRERAS PENA C., LUCAS P.W., KURTEV R., et al.
2017MNRAS.466.3199N 17       D               1 27 1 Dust scattering from the Taurus Molecular Cloud. NARAYAN S., MURTHY J. and KARUPPATH N.
2017MNRAS.471.1926N 88           X         2 5 6 Discovery of magnetic A supergiants: the descendants of magnetic main-sequence B stars. NEINER C., OKSALA M.E., GEORGY C., et al.
2017PASP..129e4504K 44           X         1 32 1 Spectrophotometry of very bright stars in the southern sky. KRISCIUNAS K., SUNTZEFF N.B., KELAREK B., et al.
2017PASP..129j5001K 17       D           *   1 10 ~ Project Solaris, a global network of autonomous observatories: design, commissioning, and first science results. KOZLOWSKI S.K., SYBILSKI P.W., KONACKI M., et al.
2016A&A...588A..64M 85           X         2 7 2 Surface abundances of OC supergiants. MARTINS F., FOSCHINO S., BOURET J.-C., et al.
2016A&A...594A..56S 298           X         7 10 5 Multiple short-lived stellar prominences on O stars: The O6.5I(n)fp star λ Cephei. SUDNIK N.P. and HENRICHS H.F.
2016AJ....151...91W 85           X         2 28 1 New luminous ON spectra from the Galactic O-star Spectroscopic Survey. WALBORN N.R., MORRELL N.I., BARBA R.H., et al.
2016AJ....152..213S viz 85           X         2 48 18 Orbits, distance, and stellar masses of the massive triple star σ Orionis. SCHAEFER G.H., HUMMEL C.A., GIES D.R., et al.
2016ApJ...830..110C 43           X         1 23 13 Comparison of damped oscillations in solar and stellar X-ray flares. CHO I.-H., CHO K.-S., NAKARIAKOV V.M., et al.
2016ApJ...833..193R viz 43           X         1 1198 4 Young stellar populations in MYStIX star-forming regions: candidate protostars. ROMINE G., FEIGELSON E.D., GETMAN K.V., et al.
2016MNRAS.456..633M 85           X         2 12 9 Discovery of an eclipsing dwarf nova in the ancient nova shell Te 11. MISZALSKI B., WOUDT P.A., LITTLEFAIR S.P., et al.
2016MNRAS.457.2355S 43           X         1 22 21 Rejuvenation of stellar mergers and the origin of magnetic fields in massive stars. SCHNEIDER F.R.N., PODSIADLOWSKI P., LANGER N., et al.
2016MNRAS.459.1710M 17       D               2 12 7 Modelling dust scattering in our Galaxy. MURTHY J.
2016PASP..12855004G 213           X C       4 5 ~ Vision: A six-telescope fiber-fed visible light beam combiner for the navy precision optical interferometer. GARCIA E.V., MUTERSPAUGH M.W., VAN BELLE G., et al.
2015A&A...574A..20F 86           X         2 14 34 B fields in OB stars (BOB): on the detection of weak magnetic fields in the two early B-type stars β CMa and ε CMa. Possible lack of a ``magnetic desert'' in massive stars. FOSSATI L., CASTRO N., MOREL T., et al.
2015A&A...576A...2O 24 15 A bimodal dust grain distribution in the IC 434 HII region. OCHSENDORF B.B. and TIELENS A.G.G.M.
2015A&A...577A..32O 42         O X         1 13 6 On X-ray pulsations in β Cephei-type variables. OSKINOVA L.M., TODT H., HUENEMOERDER D.P., et al.
2015A&A...578A..11B viz 13           X     *   1 2 27 Evidence for feedback in action from the molecular gas content in the z ∼ 1.6 outflowing QSO XID2028. BRUSA M., FERUGLIO C., CRESCI G., et al.
2015A&A...584A..26B viz 100       D   O X         3 198 16 Cosmography of OB stars in the solar neighbourhood. BOUY H. and ALVES J.
2015AJ....150..100K viz 167             C F     2 45 10 Spectroscopic assessment of WISE-based young stellar object selection near λ and σ Orionis. KOENIG X., HILLENBRAND L.A., PADGETT D.L., et al.
2015ARep...59..709D 1 ~ Non-stationary processes in the atmospheres of early-type stars:influence on the forbidden-to-intercombination line intensity ratio. DUSHIN V.V. and KHOLTYGIN A.F.
2015ApJ...808..111O 502           X C       11 44 16 Nested shells reveal the rejuvenation of the Orion-Eridanus superbubble. OCHSENDORF B.B., BROWN A.G.A., BALLY J., et al.
2015ApJ...815...29H 42           X         1 13 11 Probing Wolf-Rayet winds: Chandra/HETG X-ray spectra of WR 6. HUENEMOERDER D.P., GAYLEY K.G., HAMANN W.-R., et al.
2014A&A...567A..26L viz 16       D               2 1842 4 From Flamsteed to Piazzi and Lalande: new standards in 18th century astrometry. LEQUEUX J.
2014A&A...570A.104C 82           X         2 32 14 Improving the surface brightness-color relation for early-type stars using optical interferometry. CHALLOUF M., NARDETTO N., MOURARD D., et al.
2014AJ....148...47H 41           X         1 78 21 A CO survey in planet-forming disks: characterizing the gas content in the epoch of planet formation. HALES A.S., DE GREGORIO-MONSALVO I., MONTESINOS B., et al.
2014ApJ...794...97X 291           X C       6 2 7 A fully bayesian method for jointly fitting instrumental calibration and X-ray spectral models. XU J., VAN DYK D.A., KASHYAP V.L., et al.
2014ApJS..215...10N 717       D S   X C       16 43 53 X-ray emission from magnetic massive stars. NAZE Y., PETIT V., RINBRAND M., et al.
2014JAVSO..42..443M viz 16       D               39 3 Sloan magnitudes for the brightest stars. MALLAMA A.
2014MNRAS.439..908C 964       D S   X C F     21 21 37 Measuring mass-loss rates and constraining shock physics using X-ray line profiles of O stars from the Chandra archive. COHEN D.H., WOLLMAN E.E., LEUTENEGGER M.A., et al.
2014MNRAS.444.3729C 101       D     X         3 7 16 Measuring the shock-heating rate in the winds of O stars using X-ray line spectra. COHEN D.H., LI Z., GAYLEY K.G., et al.
2013A&A...550A..55R 123           X         3 4 7 The X-ray spectrum of {delta orionis} observed by LETGS aboard Chandra. RAASSEN A.J.J. and POLLOCK A.M.T.
2013A&A...551A..83H 50           X         1 3 28 A detailed X-ray investigation of ζ Puppis. III. Spectral analysis of the whole RGS spectrum. HERVE A., RAUW G. and NAZE Y.
2013A&A...554A..52H 733 T         X C       16 9 18 Dynamical mass of the O-type supergiant in ζ Orionis A. HUMMEL C.A., RIVINIUS Th., NIEVA M.-F., et al.
2013AJ....145...95T viz 41           X         1 7 5 Variability in optical spectra of ε Orionis. THOMPSON G.B. and MORRISON N.D.
2013AJ....145..171B 122           X C       2 7 5 Meter-sized moonlet population in saturn's C ring and Cassini division. BAILLIE K., COLWELL J.E., ESPOSITO L.W., et al.
2013ApJS..209...26F viz 41           X         1 87 66 Overview of the massive young star-forming complex study in infrared and X-ray (MYStIX) project. FEIGELSON E.D., TOWNSLEY L.K., BROOS P.S., et al.
2013MNRAS.429..775L viz 24     A               1 64 4 A comprehensive study of NGC 2023 with XMM-Newton and Spitzer. LOPEZ-GARCIA M.A., LOPEZ-SANTIAGO J., ALBACETE-COLOMBO J.F., et al.
2012A&A...538A..29M 42           X         1 13 32 Observational effects of magnetism in O stars: surface nitrogen abundances. MARTINS F., ESCOLANO C., WADE G.A., et al.
2012A&A...542A..71H 16       D               1 15 2 Variability in X-ray line ratios in helium-like ions of massive stars: the radiation-driven case. HOLE K.T. and IGNACE R.
2012A&A...544A..31V viz 16       D               2 1117 8 The star catalogues of Ptolemaios and Ulugh Beg. Machine-readable versions and comparison with the modern Hipparcos catalogue. VERBUNT F. and VAN GENT R.H.
2012A&A...546A..61D viz 16       D               1 87979 34 Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project. DE BRUIJNE J.H.J. and EILERS A.-C.
2012A&A...546A..69M viz 16       D               2 3350 35 Dynamical masses of a selected sample of orbital binaries. MALKOV O.Yu., TAMAZIAN V.S., DOCOBO J.A., et al.
2012AJ....143..124M viz 16       D               1 2151 6 Speckle interferometry at the U.S. Naval Observatory. XVIII. MASON B.D., HARTKOPF W.I. and FRIEDMAN E.A.
2012ApJ...746..142N 41           X         1 12 15 High-resolution X-ray spectroscopy of the magnetic of?p star HD 148937. NAZE Y., ZHEKOV S.A. and WALBORN N.R.
2012ApJ...756L...6B 40           X         1 12 2 Cosmic origins spectrograph observations of NGC 2024: an indirect view into the heart of the flame. BURGH E.B., FRANCE K. and SNOW T.P.
2012MNRAS.421.2820O 9           X     *   3 6 58 Clumped stellar winds in supergiant high-mass X-ray binaries: X-ray variability and photoionization. OSKINOVA L.M., FELDMEIER A. and KRETSCHMAR P.
2012MNRAS.422..913A 16       D               1 79 2 Identification of stars in a J1744.0 star catalogue Yixiangkaocheng. AHN S.-H.
2012MNRAS.422.3142P 16       D               1 15 13 PN fast winds: temporal structure and stellar rotation. PRINJA R.K., MASSA D.L., URBANEJA M.A., et al.
2012MNRAS.427..343M viz 16       D               1 95572 129 Fundamental parameters and infrared excesses of Hipparcos stars. McDONALD I., ZIJLSTRA A.A. and BOYER M.L.
2011A&A...530A..44J 46           X         1 8 105 Dust destruction in the ISM: a re-evaluation of dust lifetimes. JONES A.P. and NUTH III J.A.
2011AJ....141..129H viz 16       D               2 339 38 TGCat: the Chandra Transmission Grating Data Catalog and Archive. HUENEMOERDER D.P., MITSCHANG A., DEWEY D., et al.
2011AJ....141..165A 40           X         1 48 9 The age of the local interstellar bubble. ABT H.A.
2011ApJ...733....9O 119           X         3 25 14 Physical conditions in Barnard's loop, components of the Orion-Eridanus Bubble, and implications for the warm ionized medium component of the interstellar medium. O'DELL C.R., FERLAND G.J., PORTER R.L., et al.
2011ApJ...742...55S 80           X         2 11 23 A third massive star component in the σ Orionis AB system. SIMON-DIAZ S., CABALLERO J.A. and LORENZO J.
2011ApJ...743...64B viz 119           X C       2 173 32 The substellar population of σ Orionis: a deep wide survey. BEJAR V.J.S., ZAPATERO OSORIO M.R., REBOLO R., et al.
2011ApJS..194....5G viz 79           X         2 225 63 Carina OB stars: X-ray signatures of wind shocks and magnetic fields. GAGNE M., FEHON G., SAVOY M.R., et al.
2011MNRAS.410..190T viz 16       D               1 7682 126 A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun. TETZLAFF N., NEUHAUSER R. and HOHLE M.M.
2011Msngr.145...29P 16 13 Science results from the VISTA survey of the Orion star-forming region. PETR-GOTZENS M., ALCALA J.M., BRICENO C., et al.
2011PASJ...63S.717Y 40           X         1 15 3 Observation of the Cygnus OB2 association with Suzaku and long term light curves. YOSHIDA M., KITAMOTO S. and MURAKAMI H.
2011RMxAC..39....9W 119           X C       2 11 0 Review of "The Law of Interstellar Extinction in Orion" by Johnson & Mendoza (1964) and on "The Extinction Law in the Orion Nebula" by Costero & Peimbert (1970). WATSON A.M. and COSTERO R.
2010A&A...510A..36M 47         O X         1 7 123 Polycyclic aromatic hydrocarbon processing in interstellar shocks. MICELOTTA E.R., JONES A.P. and TIELENS A.G.G.M.
2010A&A...510A..59N 79           X         2 15 8 Hot and cool: two emission-line stars with constrasting behaviours in the same XMM-Newton field. NAZE Y., RAUW G. and UD-DOULA A.
2010A&A...512A..50G 118           X         3 7 3 X-ray temperatures and their radial distributions from winds of O-type supergiants: the effects of clumps. GUO J.H.
2010A&A...516A..28V viz 16       D               1 1039 10 Three editions of the star catalogue of Tycho Brahe. Machine-readable versions and comparison with the modern Hipparcos catalogue. VERBUNT F. and VAN GENT R.H.
2010A&A...516A..29V viz 16       D               1 1582 7 The star catalogue of Hevelius. Machine-readable version and comparison with the modern Hipparcos catalogue. VERBUNT F. and VAN GENT R.H.
2010A&A...518A...1M viz 16       D               1 147 40 High-resolution imaging of galactic massive stars with AstraLux. I. 138 fields with δ> -25°. MAIZ-APELLANIZ J.
2010A&A...520A..51V 39           X         1 33 24 Probing the evolving massive star population in Orion with kinematic and radioactive tracers. VOSS R., DIEHL R., VINK J.S., et al.
2010A&A...521A..45C viz 79           X         2 163 17 HRC-I/Chandra X-ray observations towards σ Orionis. CABALLERO J.A., ALBACETE-COLOMBO J.F. and LOPEZ-SANTIAGO J.
2010AJ....140.1569C 16       D               1 54 35 Cassini UVIS stellar occultation observations of saturn's rings. COLWELL J.E., ESPOSITO L.W., JEROUSEK R.G., et al.
2010ApJ...719.1767L 18       D               1 8 32 Modeling broadband X-ray absorption of massive star winds. LEUTENEGGER M.A., COHEN D.H., ZSARGO J., et al.
2010JRASC.104...46M 35 0 Aztec constellations preserved by Duran. McIVOR R.S.
2010JRASC.104..243G 12 0 HII regions in Orion - The Running Man. GARNER D.
2010MNRAS.404.1321W viz 16       D               1 463 26 Interstellar Ti II in the Milky way and Magellanic clouds. WELTY D.E. and CROWTHER P.A.
2010MNRAS.405.2391C 47           X         1 3 49 A mass-loss rate determination for ζ Puppis from the quantitative analysis of X-ray emission-line profiles. COHEN D.H., LEUTENEGGER M.A., WOLLMAN E.E., et al.
2010PASP..122..379T 16       D               1 41 19 Spectral energy distributions of Be and other massive stars. TOUHAMI Y., RICHARDSON N.D., GIES D.R., et al.
2009A&A...505..743V 78             C       1 28 28 On the presence and absence of disks around O-type stars. VINK JORICK S., DAVIES B., HARRIES T.J., et al.
2009A&A...505.1115L 39           X         1 105 43 A census of very-low-mass stars and brown dwarfs in the σ Orionis cluster. LODIEU N., ZAPATERO OSORIO M.R., REBOLO R., et al.
2009A&A...508..531N 198           X C       4 3 22 Iqueye, a single photon-counting photometer applied to the ESO new technology telescope. NALETTO G., BARBIERI C., OCCHIPINTI T., et al.
2009A&ARv..17..309G 312           X         8 149 120 X-ray spectroscopy of stars. GUEDEL M. and NAZE Y.
2009AJ....137.3358M viz 94       D     X         3 1201 179 The high angular resolution multiplicity of massive stars. MASON B.D., HARTKOPF W.I., GIES D.R., et al.
2009ApJ...703..633W 94       D         F     1 19 17 The correlation between X-ray line ionization and optical spectral types of the OB stars. WALBORN N.R., NICHOLS J.S. and WALDRON W.L.
2009ApJS..184..138H viz 16       D               2 20740 30 XID II: statistical cross-association of ROSAT bright source catalog X-ray sources with 2MASS point source catalog near-infrared sources. HAAKONSEN C.B. and RUTLEDGE R.E.
2008A&A...477..593A viz 77           X         2 254 26 XMM-Newton X-ray study of early type stars in the Carina OB1 association. ANTOKHIN I.I., RAUW G., VREUX J.-M., et al.
2008A&A...478..513R 1471 T K A D     X C       37 8 17 XMM-Newton observations of ζ Orionis (O9.7 Ib): a collisional ionization equilibrium model. RAASSEN A.J.J., VAN DER HUCHT K.A., MILLER N.A., et al.
2008A&A...478..667C viz 155           X         4 475 40 Stars and brown dwarfs in the σ Orionis cluster: the Mayrit catalogue. CABALLERO J.A.
2008A&A...485..931C viz 116         O X         3 217 23 Young stars and brown dwarfs surrounding Alnilam (ε Orionis) and Mintaka (δ Orionis). CABALLERO J.A. and SOLANO E.
2008A&A...490..801N 39           X         1 9 4 High-resolution X-ray spectroscopy of θ Carinae. NAZE Y. and RAUW G.
2008A&A...492..127S 62           X         1 1 47 Carbonaceous dust in interstellar shock waves: hydrogenated amorphous carbon (a-C:H) vs. graphite. SERRA DIAZ-CANO L. and JONES A.P.
2008A&ARv..16..209P 1 53 201 Mass loss from hot massive stars. PULS J., VINK J.S. and NAJARRO F.
2008AN....329..222R 10 2 X-ray spectroscopy of early-type stars: The present and the future. RAUW G., NAZE Y. and OSKINOVA L.M.
2008AN....329..801C viz 54       D     X         2 528 10 A revisit to agglomerate of early-type Hipparcos stars. CABALLERO J.A. and DINIS L.
2008ApJ...675..464W viz 39           X         1 979 59 A Chandra study of the Rosette star-forming complex. I. The stellar population and structure of the young open cluster NGC 2244. WANG J., TOWNSLEY L.K., FEIGELSON E.D., et al.
2008ApJ...680..384W 15       D               1 47 52 Chemical rates on small grains and PAHs: c+ recombination and H2Formation. WOLFIRE M.G., TIELENS A.G.G.M., HOLLENBACH D., et al.
2008ApJ...680..705H 78           X         2 13 34 Chandra X-ray grating spectrometry of η Carinae near X-ray minimum. I. Variability of the sulfur and silicon emission lines. HENLEY D.B., CORCORAN M.F., PITTARD J.M., et al.
2008ApJ...683..796S 77           X         2 67 31 High-resolution Chandra X-ray imaging and spectroscopy of the σ Orionis cluster. SKINNER S.L., SOKAL K.R., COHEN D.H., et al.
2008ApJ...683.1052C 16       D               1 8 17 The effects of clumps in explaining X-ray emission lines from hot stars. CASSINELLI J.P., IGNACE R., WALDRON W.L., et al.
2008ApJS..176...59B viz 54       D     X         2 287 58 The Far Ultraviolet Spectroscopic Explorer survey of O VI absorption in the disk of the Milky way. BOWEN D.V., JENKINS E.B., TRIPP T.M., et al.
2008ApJS..176..218W 93       D       C       3 77 6 X-atlas: an online archive of chandra's stellar high-energy transmission grating observations. WESTBROOK O.W., EVANS N.R., WOLK S.J., et al.
2008JBAA..118..293M 5 0 Observing the Horsehead Nebula. MOORE S.L., JOHNSON G., ROGERS G., et al.
2008MNRAS.383..375C 77           X         2 21 37 Spatial distribution of stars and brown dwarfs in σ Orionis. CABALLERO J.A.
2008MNRAS.386.1855C 39           X         1 18 26 Chandra spectroscopy of the hot star βCrucis and the discovery of a pre-main-sequence companion. COHEN D.H., KUHN M.A., GAGNE M., et al.
2008MNRAS.391...84K 39           X         1 51 5 Lynds 1622: a nearby star-forming cloud projected on Orion B? KUN M., BALOG Z., MIZUNO N., et al.
2007A&A...463.1111P 1         O           13 28 A new paradigm for the X-ray emission of O stars from XMM-Newton observations of the O9.7 supergiant ζ Orionis. POLLOCK A.M.T.
2007A&A...466..917C viz 307         O X C       7 73 50 The brightest stars of the σ Orionis cluster. CABALLERO J.A.
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