Dreizler, Stefan

[["dc.bibliographiccitation.firstpage","A68"],["dc.bibliographiccitation.journal","Astronomy and Astrophysics"],["dc.bibliographiccitation.volume","625"],["dc.contributor.author","Schweitzer, A."],["dc.contributor.author","Passegger, V. M."],["dc.contributor.author","Cifuentes, C."],["dc.contributor.author","Béjar, V. J. S."],["dc.contributor.author","Cortés-Contreras, M."],["dc.contributor.author","Caballero, J. A."],["dc.contributor.author","del Burgo, C."],["dc.contributor.author","Czesla, S."],["dc.contributor.author","Kürster, M."],["dc.contributor.author","Montes, D."],["dc.contributor.author","Zapatero Osorio, M. R."],["dc.contributor.author","Ribas, I."],["dc.contributor.author","Reiners, A."],["dc.contributor.author","Quirrenbach, A."],["dc.contributor.author","Amado, P. J."],["dc.contributor.author","Aceituno, J."],["dc.contributor.author","Anglada-Escudé, G."],["dc.contributor.author","Bauer, F. F."],["dc.contributor.author","Dreizler, S."],["dc.contributor.author","Jeffers, S. V."],["dc.contributor.author","Guenther, E. W."],["dc.contributor.author","Henning, T."],["dc.contributor.author","Kaminski, A."],["dc.contributor.author","Lafarga, M."],["dc.contributor.author","Marfil, E."],["dc.contributor.author","Morales, J. C."],["dc.contributor.author","Schmitt, J. H. M. M."],["dc.contributor.author","Seifert, W."],["dc.contributor.author","Solano, E."],["dc.contributor.author","Tabernero, H. M."],["dc.contributor.author","Zechmeister, M."],["dc.date.accessioned","2020-12-10T18:11:47Z"],["dc.date.available","2020-12-10T18:11:47Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1051/0004-6361/201834965"],["dc.identifier.eissn","1432-0746"],["dc.identifier.issn","0004-6361"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/74142"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","The CARMENES search for exoplanets around M dwarfs"],["dc.title.alternative","Different roads to radii and masses of the target stars"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","A199"],["dc.bibliographiccitation.journal","Astronomy & Astrophysics"],["dc.bibliographiccitation.volume","664"],["dc.contributor.author","Luque, R."],["dc.contributor.author","Fulton, B. J."],["dc.contributor.author","Kunimoto, M."],["dc.contributor.author","Amado, P. J."],["dc.contributor.author","Gorrini, P."],["dc.contributor.author","Dreizler, S."],["dc.contributor.author","Hellier, C."],["dc.contributor.author","Henry, G. W."],["dc.contributor.author","Molaverdikhani, K."],["dc.contributor.author","Morello, G."],["dc.contributor.author","Zapatero Osorio, M. R."],["dc.date.accessioned","2022-10-04T10:22:19Z"],["dc.date.available","2022-10-04T10:22:19Z"],["dc.date.issued","2022"],["dc.description.abstract","We report the discovery of a multiplanetary system transiting the M0 V dwarf HD 260655 (GJ 239, TOI-4599). The system consists of at least two transiting planets, namely HD 260655 b, with a period of 2.77 d, a radius of\n R\n b\n = 1.240 ± 0.023\n R\n ⊕\n , a mass of\n M\n b\n = 2.14 ± 0.34\n M\n ⊕\n , and a bulk density of\n ρ\n b\n = 6.2 ± 1.0 g cm\n −3\n , and HD 260655 c, with a period of 5.71 d, a radius of ${R_c} = 1.533_{ - 0.046}^{ + 0.051}{R_ \\oplus }$, a mass of\n M\n c\n = 3.09 ± 0.48\n M\n ⊕\n , and a bulk density of ${\\rho _c} = 4.7_{ - 0.8}^{ + 0.9}{\\rm{g}}$ g cm\n −3\n . The planets have been detected in transit by the Transiting Exoplanet Survey Satellite (TESS) mission and confirmed independently with archival and new precise radial velocities obtained with the HIRES and CARMENES instruments since 1998 and 2016, respectively. At a distance of 10 pc, HD 260655 has become the fourth closest known multitransiting planet system after HD 219134, LTT 1445 A, and AU Mic. Due to the apparent brightness of the host star (\n J\n = 6.7 mag), both planets are among the most suitable rocky worlds known today for atmospheric studies with the\n James Webb\n Space Telescope, both in transmission and emission."],["dc.identifier.doi","10.1051/0004-6361/202243834"],["dc.identifier.pii","aa43834-22"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/114643"],["dc.notes.intern","DOI-Import GROB-600"],["dc.relation.eissn","1432-0746"],["dc.relation.issn","0004-6361"],["dc.title","The HD 260655 system: Two rocky worlds transiting a bright M dwarf at 10 pc"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","A50"],["dc.bibliographiccitation.journal","Astronomy and Astrophysics"],["dc.bibliographiccitation.volume","640"],["dc.contributor.author","Bauer, F. F."],["dc.contributor.author","Zechmeister, M."],["dc.contributor.author","Kaminski, A."],["dc.contributor.author","Rodríguez López, C."],["dc.contributor.author","Caballero, J. A."],["dc.contributor.author","Azzaro, M."],["dc.contributor.author","Stahl, O."],["dc.contributor.author","Kossakowski, D."],["dc.contributor.author","Quirrenbach, A."],["dc.contributor.author","Becerril Jarque, S."],["dc.contributor.author","Rodríguez, E."],["dc.contributor.author","Amado, P. J."],["dc.contributor.author","Seifert, W."],["dc.contributor.author","Reiners, A."],["dc.contributor.author","Schäfer, S."],["dc.contributor.author","Ribas, I."],["dc.contributor.author","Béjar, V. J. S."],["dc.contributor.author","Cortés-Contreras, M."],["dc.contributor.author","Dreizler, S."],["dc.contributor.author","Hatzes, A."],["dc.contributor.author","Henning, T."],["dc.contributor.author","Jeffers, S. V."],["dc.contributor.author","Kürster, M."],["dc.contributor.author","Lafarga, M."],["dc.contributor.author","Montes, D."],["dc.contributor.author","Morales, J. C."],["dc.contributor.author","Schmitt, J. H. M. M."],["dc.contributor.author","Schweitzer, A."],["dc.contributor.author","Solano, E."],["dc.date.accessioned","2021-04-14T08:24:23Z"],["dc.date.available","2021-04-14T08:24:23Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1051/0004-6361/202038031"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/81267"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1432-0746"],["dc.relation.issn","0004-6361"],["dc.title","The CARMENES search for exoplanets around M dwarfs"],["dc.title.alternative","Measuring precise radial velocities in the near infrared: The example of the super-Earth CD Cet b"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","A123"],["dc.bibliographiccitation.journal","Astronomy and Astrophysics"],["dc.bibliographiccitation.volume","635"],["dc.contributor.author","Boldt, S."],["dc.contributor.author","Oshagh, M."],["dc.contributor.author","Dreizler, S."],["dc.contributor.author","Mallonn, M."],["dc.contributor.author","Santos, N. C."],["dc.contributor.author","Claret, A."],["dc.contributor.author","Reiners, A."],["dc.contributor.author","Sedaghati, E."],["dc.date.accessioned","2020-12-10T18:11:56Z"],["dc.date.available","2020-12-10T18:11:56Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1051/0004-6361/201937419"],["dc.identifier.eissn","1432-0746"],["dc.identifier.issn","0004-6361"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/74187"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Stellar activity consequence on the retrieved transmission spectra through chromatic Rossiter-McLaughlin observations"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","457"],["dc.bibliographiccitation.issue","3-4"],["dc.bibliographiccitation.journal","Astrophysics and Space Science"],["dc.bibliographiccitation.lastpage","464"],["dc.bibliographiccitation.volume","291"],["dc.contributor.author","O'Toole, S. J."],["dc.contributor.author","Falter, S."],["dc.contributor.author","Heber, Ulrich"],["dc.contributor.author","Jeffery, C. S."],["dc.contributor.author","Dreizler, Stefan"],["dc.contributor.author","Schuh, S. L."],["dc.date.accessioned","2018-11-07T10:52:04Z"],["dc.date.available","2018-11-07T10:52:04Z"],["dc.date.issued","2004"],["dc.description.abstract","We present the first results from the MultiSite Spectroscopic Telescope (MSST) observations of the sdBV star PG 1605+072. Pulsating sdB stars (also known as EC 14026 stars) offer the chance to gain new insights into the formation and evolution of extreme Horizontal Branch stars using the tools of asteroseismology. PG1605+072 is an outstanding object in its class, with the richest frequency spectrum, the longest periods, and the largest variations. The MSST campaign took place in May/June 2002 immediately following the Whole Earth Telescope Xcov22 run, which observed PG 1605+072 as an alternate target. We will first give an overview of the project and its feasibility, after which we will present the massive data set, made up of 399 h of photometry and 151 h of spectroscopy. The overall aims of the project are to examine light/velocity amplitude ratios and phase differences, changes in equivalent width/line index, and lambda-dependence of photometric amplitudes, and to use these properties for mode identification."],["dc.identifier.doi","10.1023/B:ASTR.0000044360.79737.38"],["dc.identifier.isi","000224389400041"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/49036"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Kluwer Academic Publ"],["dc.publisher.place","Dordrecht"],["dc.relation.conference","Meeting on sdB Stars"],["dc.relation.eventlocation","Keele Univ, Staffordshire, ENGLAND"],["dc.relation.issn","0004-640X"],["dc.title","MSST observations of the pulsating sdB star PG 1605+072"],["dc.type","conference_paper"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","A41"],["dc.bibliographiccitation.journal","Astronomy and Astrophysics"],["dc.bibliographiccitation.volume","618"],["dc.contributor.author","Freudenthal, J."],["dc.contributor.author","von Essen, C."],["dc.contributor.author","Dreizler, S."],["dc.contributor.author","Wedemeyer, S."],["dc.contributor.author","Agol, E."],["dc.contributor.author","Morris, B. M."],["dc.contributor.author","Becker, A. C."],["dc.contributor.author","Mallonn, M."],["dc.contributor.author","Hoyer, S."],["dc.contributor.author","Ofir, A."],["dc.contributor.author","Tal-Or, L."],["dc.contributor.author","Deeg, H. J."],["dc.contributor.author","Herrero, E."],["dc.contributor.author","Ribas, I."],["dc.contributor.author","Khalafinejad, S."],["dc.contributor.author","Hernández, J."],["dc.contributor.author","Rodríguez S., M. M."],["dc.date.accessioned","2020-12-10T18:11:42Z"],["dc.date.available","2020-12-10T18:11:42Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1051/0004-6361/201833436"],["dc.identifier.eissn","1432-0746"],["dc.identifier.issn","0004-6361"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/74112"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Kepler Object of Interest Network"],["dc.title.alternative","II. Photodynamical modelling of Kepler-9 over 8 years of transit observations"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","A97"],["dc.bibliographiccitation.journal","Astronomy and Astrophysics"],["dc.bibliographiccitation.volume","620"],["dc.contributor.author","Salz, M."],["dc.contributor.author","Czesla, S."],["dc.contributor.author","Schneider, P. C."],["dc.contributor.author","Nagel, E."],["dc.contributor.author","Schmitt, J. H. M. M."],["dc.contributor.author","Nortmann, L."],["dc.contributor.author","Alonso-Floriano, F. J."],["dc.contributor.author","López-Puertas, M."],["dc.contributor.author","Lampón, M."],["dc.contributor.author","Bauer, F. F."],["dc.contributor.author","Snellen, I. A. G."],["dc.contributor.author","Pallé, E."],["dc.contributor.author","Caballero, J. A."],["dc.contributor.author","Yan, F."],["dc.contributor.author","Chen, G."],["dc.contributor.author","Sanz-Forcada, J."],["dc.contributor.author","Amado, P. J."],["dc.contributor.author","Quirrenbach, A."],["dc.contributor.author","Ribas, I."],["dc.contributor.author","Reiners, A."],["dc.contributor.author","Béjar, V. J. S."],["dc.contributor.author","Casasayas-Barris, N."],["dc.contributor.author","Cortés-Contreras, M."],["dc.contributor.author","Dreizler, S."],["dc.contributor.author","Guenther, E. W."],["dc.contributor.author","Henning, T."],["dc.contributor.author","Jeffers, S. V."],["dc.contributor.author","Kaminski, A."],["dc.contributor.author","Kürster, M."],["dc.contributor.author","Lafarga, M."],["dc.contributor.author","Lara, L. M."],["dc.contributor.author","Molaverdikhani, K."],["dc.contributor.author","Montes, D."],["dc.contributor.author","Morales, J. C."],["dc.contributor.author","Sánchez-López, A."],["dc.contributor.author","Seifert, W."],["dc.contributor.author","Zapatero Osorio, M. R."],["dc.contributor.author","Zechmeister, M."],["dc.date.accessioned","2020-12-10T18:11:43Z"],["dc.date.available","2020-12-10T18:11:43Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1051/0004-6361/201833694"],["dc.identifier.eissn","1432-0746"],["dc.identifier.issn","0004-6361"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/74117"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Detection of He I λ10830 Å absorption on HD 189733 b with CARMENES high-resolution transmission spectroscopy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","A133"],["dc.bibliographiccitation.journal","Astronomy and Astrophysics"],["dc.bibliographiccitation.volume","607"],["dc.contributor.author","Wendt, Martin"],["dc.contributor.author","Husser, Tim-Oliver"],["dc.contributor.author","Kamann, Sebastian"],["dc.contributor.author","Monreal-Ibero, Ana"],["dc.contributor.author","Richter, Philipp"],["dc.contributor.author","Brinchmann, Jarle"],["dc.contributor.author","Dreizler, Stefan"],["dc.contributor.author","Weilbacher, Peter M."],["dc.contributor.author","Wisotzki, Lutz"],["dc.date.accessioned","2020-12-10T18:11:34Z"],["dc.date.available","2020-12-10T18:11:34Z"],["dc.date.issued","2017"],["dc.identifier.doi","10.1051/0004-6361/201629816"],["dc.identifier.eissn","1432-0746"],["dc.identifier.issn","0004-6361"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/74062"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Mapping diffuse interstellar bands in the local ISM on small scales via MUSE 3D spectroscopy"],["dc.title.alternative","A pilot study based on globular cluster NGC 6397"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","A24"],["dc.bibliographiccitation.journal","Astronomy and Astrophysics"],["dc.bibliographiccitation.volume","632"],["dc.contributor.author","Fuhrmeister, B."],["dc.contributor.author","Czesla, S."],["dc.contributor.author","Hildebrandt, L."],["dc.contributor.author","Nagel, E."],["dc.contributor.author","Schmitt, J. H. M. M."],["dc.contributor.author","Hintz, D."],["dc.contributor.author","Johnson, E. N."],["dc.contributor.author","Sanz-Forcada, J."],["dc.contributor.author","Schöfer, P."],["dc.contributor.author","Jeffers, S. V."],["dc.contributor.author","Caballero, J. A."],["dc.contributor.author","Zechmeister, M."],["dc.contributor.author","Reiners, A."],["dc.contributor.author","Ribas, I."],["dc.contributor.author","Amado, P. J."],["dc.contributor.author","Quirrenbach, A."],["dc.contributor.author","Bauer, F. F."],["dc.contributor.author","Béjar, V. J. S."],["dc.contributor.author","Cortés-Contreras, M."],["dc.contributor.author","Díez-Alonso, E."],["dc.contributor.author","Dreizler, S."],["dc.contributor.author","Galadí-Enríquez, D."],["dc.contributor.author","Günther, E. W."],["dc.contributor.author","Kaminski, A."],["dc.contributor.author","Kürster, M."],["dc.contributor.author","Lafarga, M."],["dc.contributor.author","Montes, D."],["dc.date.accessioned","2020-04-06T07:56:28Z"],["dc.date.available","2020-04-06T07:56:28Z"],["dc.date.issued","2019-11-01"],["dc.description.abstract","The He I infrared (IR) triplet at 10830 AA is an important activity indicator for the Sun and in solar-type stars, however, it has rarely been studied in relation to M dwarfs to date. In this study, we use the time-averaged spectra of 319 single stars with spectral types ranging from M0.0 V to M9.0 V obtained with the CARMENES high resolution optical and near-infrared spectrograph at Calar Alto to study the properties of the He I IR triplet lines. In quiescence, we find the triplet in absorption with a decrease of the measured pseudo equivalent width (pEW) towards later sub-types. For stars later than M5.0 V, the He I triplet becomes undetectable in our study. This dependence on effective temperature may be related to a change in chromospheric conditions along the M dwarf sequence. When an emission in the triplet is observed, we attribute it to flaring. The absence of emission during quiescence is consistent with line formation by photo-ionisation and recombination, while flare emission may be caused by collisions within dense material. The He I triplet tends to increase in depth according to increasing activity levels, ultimately becoming filled in; however, we do not find a correlation between the pEW(He IR) and X-ray properties. This behaviour may be attributed to the absence of very inactive stars ($L_{\\rm X}/L_{\\rm bol}$ < -5.5) in our sample or to the complex behaviour with regard to increasing depth and filling in."],["dc.identifier.arxiv","1911.00246v1"],["dc.identifier.doi","10.1051/0004-6361/201936193"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/63790"],["dc.relation.issn","0004-6361"],["dc.relation.issn","1432-0746"],["dc.title","The CARMENES search for exoplanets around M dwarfs"],["dc.title.subtitle","The He I triplet at 10830 Å across the M dwarf sequence"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","A69"],["dc.bibliographiccitation.journal","Astronomy and Astrophysics"],["dc.bibliographiccitation.volume","641"],["dc.contributor.author","Baroch, D."],["dc.contributor.author","Morales, J. C."],["dc.contributor.author","Ribas, I."],["dc.contributor.author","Herrero, E."],["dc.contributor.author","Rosich, A."],["dc.contributor.author","Perger, M."],["dc.contributor.author","Anglada-Escudé, G."],["dc.contributor.author","Reiners, A."],["dc.contributor.author","Caballero, J. A."],["dc.contributor.author","Quirrenbach, A."],["dc.contributor.author","Amado, P. J."],["dc.contributor.author","Jeffers, S. V."],["dc.contributor.author","Cifuentes, C."],["dc.contributor.author","Passegger, V. M."],["dc.contributor.author","Schweitzer, A."],["dc.contributor.author","Lafarga, M."],["dc.contributor.author","Bauer, F. F."],["dc.contributor.author","Béjar, V. J. S."],["dc.contributor.author","Colomé, J."],["dc.contributor.author","Cortés-Contreras, M."],["dc.contributor.author","Dreizler, S."],["dc.contributor.author","Galadí-Enríquez, D."],["dc.contributor.author","Hatzes, A. P."],["dc.contributor.author","Henning, Th."],["dc.contributor.author","Kaminski, A."],["dc.contributor.author","Kürster, M."],["dc.contributor.author","Montes, D."],["dc.contributor.author","Rodríguez-López, C."],["dc.contributor.author","Zechmeister, M."],["dc.date.accessioned","2021-04-14T08:23:09Z"],["dc.date.available","2021-04-14T08:23:09Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1051/0004-6361/202038213"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/80811"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1432-0746"],["dc.relation.issn","0004-6361"],["dc.title","The CARMENES search for exoplanets around M dwarfs"],["dc.title.alternative","Convective shift and starspot constraints from chromatic radial velocities"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]