Oshagh, Mahmoudreza

[["dc.bibliographiccitation.firstpage","A22"],["dc.bibliographiccitation.journal","Astronomy and Astrophysics"],["dc.bibliographiccitation.volume","645"],["dc.contributor.author","Yan, F."],["dc.contributor.author","Wyttenbach, A."],["dc.contributor.author","Casasayas-Barris, N."],["dc.contributor.author","Reiners, A."],["dc.contributor.author","Pallé, E."],["dc.contributor.author","Henning, Th."],["dc.contributor.author","Mollière, P."],["dc.contributor.author","Czesla, S."],["dc.contributor.author","Nortmann, L."],["dc.contributor.author","Molaverdikhani, K."],["dc.contributor.author","Chen, G."],["dc.contributor.author","Snellen, I. A. G."],["dc.contributor.author","Zechmeister, M."],["dc.contributor.author","Huang, C."],["dc.contributor.author","Ribas, I."],["dc.contributor.author","Quirrenbach, A."],["dc.contributor.author","Caballero, J. A."],["dc.contributor.author","Amado, P. J."],["dc.contributor.author","Cont, D."],["dc.contributor.author","Khalafinejad, S."],["dc.contributor.author","Khaimova, J."],["dc.contributor.author","López-Puertas, M."],["dc.contributor.author","Montes, D."],["dc.contributor.author","Nagel, E."],["dc.contributor.author","Oshagh, M."],["dc.contributor.author","Pedraz, S."],["dc.contributor.author","Stangret, M."],["dc.date.accessioned","2021-04-14T08:30:14Z"],["dc.date.available","2021-04-14T08:30:14Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1051/0004-6361/202039302"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/83161"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1432-0746"],["dc.relation.issn","0004-6361"],["dc.title","Detection of the hydrogen Balmer lines in the ultra-hot Jupiter WASP-33b"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","3484"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Monthly Notices of the Royal Astronomical Society"],["dc.bibliographiccitation.lastpage","3492"],["dc.bibliographiccitation.volume","497"],["dc.contributor.author","Akinsanmi, B"],["dc.contributor.author","Barros, S C C"],["dc.contributor.author","Santos, N C"],["dc.contributor.author","Oshagh, M"],["dc.contributor.author","Serrano, L M"],["dc.date.accessioned","2021-04-14T08:23:00Z"],["dc.date.available","2021-04-14T08:23:00Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1093/mnras/staa2164"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/80765"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1365-2966"],["dc.relation.issn","0035-8711"],["dc.title","Constraining the oblateness of transiting planets with photometry and spectroscopy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","A73"],["dc.bibliographiccitation.journal","Astronomy and Astrophysics"],["dc.bibliographiccitation.volume","654"],["dc.contributor.author","Stangret, M."],["dc.contributor.author","Pallé, E."],["dc.contributor.author","Casasayas-Barris, N."],["dc.contributor.author","Oshagh, Mahmoudreza"],["dc.contributor.author","Bello-Arufe, A."],["dc.contributor.author","Luque, R."],["dc.contributor.author","Nascimbeni, V."],["dc.contributor.author","Yan, F."],["dc.contributor.author","Orell-Miquel, J."],["dc.contributor.author","Sicilia, D."],["dc.contributor.author","Tronsgaard, R."],["dc.date.accessioned","2021-12-01T09:23:47Z"],["dc.date.available","2021-12-01T09:23:47Z"],["dc.date.issued","2021"],["dc.description.abstract","Ultra-hot Jupiters are defined as giant planets with equilibrium temperatures larger than 2000 K. Most of them are found orbiting bright A-F type stars, making them extremely suitable objects to study their atmospheres using high-resolution spectroscopy. Recent studies show a variety of atoms and molecules detected in the atmospheres of this type of planets. Here we present our analysis of the newly discovered ultra-hot Jupiter TOI-1431 b/MASCARA-5 b, using two transit observations with the HARPS-N spectrograph and one transit observation with the EXPRES spectrograph. Analysis of the Rossiter-McLaughlin effect shows that the planet is in a polar orbit, with a projected obliquity λ = −155 −10 +20 degrees. Combining the nights and applying both cross-correlation methods and transmission spectroscopy, we find no evidences of Ca  I , Fe  I , Fe  II , Mg  I , Na  I , V  I , TiO, VO or H α in the atmosphere of the planet. Our most likely explanation for the lack of atmospheric features is the large surface gravity of the planet."],["dc.identifier.doi","10.1051/0004-6361/202040100"],["dc.identifier.pii","aa40100-20"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/94756"],["dc.notes.intern","DOI-Import GROB-478"],["dc.relation.eissn","1432-0746"],["dc.relation.issn","0004-6361"],["dc.rights.uri","https://www.edpsciences.org/en/authors/copyright-and-licensing"],["dc.title","The obliquity and atmosphere of the ultra-hot Jupiter TOI-1431b (MASCARA-5b): A misaligned orbit and no signs of atomic or molecular absorptions"],["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","A69"],["dc.bibliographiccitation.journal","Astronomy and Astrophysics"],["dc.bibliographiccitation.volume","636"],["dc.contributor.author","Amazo-Gómez, E. M."],["dc.contributor.author","Shapiro, A. I."],["dc.contributor.author","Solanki, S. K."],["dc.contributor.author","Krivova, N. A."],["dc.contributor.author","Kopp, G."],["dc.contributor.author","Reinhold, T."],["dc.contributor.author","Oshagh, M."],["dc.contributor.author","Reiners, A."],["dc.date.accessioned","2021-04-14T08:26:43Z"],["dc.date.available","2021-04-14T08:26:43Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1051/0004-6361/201936925"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/82050"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1432-0746"],["dc.relation.issn","0004-6361"],["dc.title","Inflection point in the power spectrum of stellar brightness variations"],["dc.title.alternative","II. The Sun"],["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","632"],["dc.contributor.author","Yan, F."],["dc.contributor.author","Casasayas-Barris, N."],["dc.contributor.author","Molaverdikhani, K."],["dc.contributor.author","Alonso-Floriano, F. J."],["dc.contributor.author","Reiners, A."],["dc.contributor.author","Palle, E."],["dc.contributor.author","Henning, Th."],["dc.contributor.author","Mollière, P."],["dc.contributor.author","Chen, G."],["dc.contributor.author","Nortmann, L."],["dc.contributor.author","Snellen, I. A. G."],["dc.contributor.author","Ribas, I."],["dc.contributor.author","Quirrenbach, A."],["dc.contributor.author","Caballero, J. A."],["dc.contributor.author","Amado, P. J."],["dc.contributor.author","Azzaro, M."],["dc.contributor.author","Bauer, F. F."],["dc.contributor.author","Cortés Contreras, M."],["dc.contributor.author","Czesla, S."],["dc.contributor.author","Khalafinejad, S."],["dc.contributor.author","Lara, L. M."],["dc.contributor.author","López-Puertas, M."],["dc.contributor.author","Montes, D."],["dc.contributor.author","Nagel, E."],["dc.contributor.author","Oshagh, M."],["dc.contributor.author","Sánchez-López, A."],["dc.contributor.author","Stangret, M."],["dc.contributor.author","Zechmeister, M."],["dc.date.accessioned","2020-04-06T07:20:35Z"],["dc.date.available","2020-04-06T07:20:35Z"],["dc.date.issued","2019-11-01"],["dc.description.abstract","Ultra-hot Jupiters are emerging as a new class of exoplanets. Studying their chemical compositions and temperature structures will improve the understanding of their mass loss rate as well as their formation and evolution. We present the detection of ionized calcium in the two hottest giant exoplanets - KELT-9b and WASP-33b. By utilizing transit datasets from CARMENES and HARPS-N observations, we achieved high confidence level detections of Ca II using the cross-correlation method. We further obtain the transmission spectra around the individual lines of the Ca II H&K doublet and the near-infrared triplet, and measure their line profiles. The Ca II H&K lines have an average line depth of 2.02 $\\pm$ 0.17 % (effective radius of 1.56 Rp) for WASP-33b and an average line depth of 0.78 $\\pm$ 0.04 % (effective radius of 1.47 Rp) for KELT-9b, which indicates that the absorptions are from very high upper atmosphere layers close to the planetary Roche lobes. The observed Ca II lines are significantly deeper than the predicted values from the hydrostatic models. Such a discrepancy is probably a result of hydrodynamic outflow that transports a significant amount of Ca II into the upper atmosphere. The prominent Ca II detection with the lack of significant Ca I detection implies that calcium is mostly ionized in the upper atmospheres of the two planets."],["dc.identifier.arxiv","1911.00380v1"],["dc.identifier.doi","10.1051/0004-6361/201936396"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/63758"],["dc.relation.issn","0004-6361"],["dc.relation.issn","1432-0746"],["dc.title","Ionized calcium in the atmospheres of two ultra-hot exoplanets WASP-33b and KELT-9b"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","A30"],["dc.bibliographiccitation.journal","Astronomy and Astrophysics"],["dc.bibliographiccitation.volume","603"],["dc.contributor.author","Santos, N. C."],["dc.contributor.author","Adibekyan, V."],["dc.contributor.author","Figueira, P."],["dc.contributor.author","Andreasen, D. T."],["dc.contributor.author","Barros, S. C. C."],["dc.contributor.author","Delgado-Mena, E."],["dc.contributor.author","Demangeon, O."],["dc.contributor.author","Faria, J. P."],["dc.contributor.author","Oshagh, M."],["dc.contributor.author","Sousa, S. G."],["dc.contributor.author","Viana, P. T. P."],["dc.contributor.author","Ferreira, A. C.S."],["dc.date.accessioned","2020-12-10T18:11:34Z"],["dc.date.available","2020-12-10T18:11:34Z"],["dc.date.issued","2017"],["dc.identifier.doi","10.1051/0004-6361/201730761"],["dc.identifier.eissn","1432-0746"],["dc.identifier.issn","0004-6361"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/74067"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Observational evidence for two distinct giant planet populations"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","A206"],["dc.bibliographiccitation.journal","Astronomy and Astrophysics"],["dc.bibliographiccitation.volume","635"],["dc.contributor.author","Casasayas-Barris, N."],["dc.contributor.author","Pallé, E."],["dc.contributor.author","Yan, F."],["dc.contributor.author","Chen, G."],["dc.contributor.author","Luque, R."],["dc.contributor.author","Stangret, M."],["dc.contributor.author","Nagel, E."],["dc.contributor.author","Zechmeister, M."],["dc.contributor.author","Oshagh, M."],["dc.contributor.author","Sanz-Forcada, J."],["dc.contributor.author","Nortmann, L."],["dc.contributor.author","Alonso-Floriano, F. J."],["dc.contributor.author","Amado, P. J."],["dc.contributor.author","Caballero, J. A."],["dc.contributor.author","Czesla, S."],["dc.contributor.author","Khalafinejad, S."],["dc.contributor.author","López-Puertas, M."],["dc.contributor.author","López-Santiago, J."],["dc.contributor.author","Molaverdikhani, K."],["dc.contributor.author","Montes, D."],["dc.contributor.author","Quirrenbach, A."],["dc.contributor.author","Reiners, A."],["dc.contributor.author","Ribas, I."],["dc.contributor.author","Sánchez-López, A."],["dc.contributor.author","Zapatero Osorio, M. R."],["dc.date.accessioned","2020-12-10T18:11:54Z"],["dc.date.available","2020-12-10T18:11:54Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1051/0004-6361/201937221"],["dc.identifier.eissn","1432-0746"],["dc.identifier.issn","0004-6361"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/74182"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Is there Na I in the atmosphere of HD 209458b?"],["dc.title.alternative","Effect of the centre-to-limb variation and Rossiter-McLaughlin effect in transmission spectroscopy studies"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","A39"],["dc.bibliographiccitation.journal","Astronomy and Astrophysics"],["dc.bibliographiccitation.volume","628"],["dc.contributor.author","Luque, R."],["dc.contributor.author","Pallé, E."],["dc.contributor.author","Kossakowski, D."],["dc.contributor.author","Dreizler, S."],["dc.contributor.author","Kemmer, J."],["dc.contributor.author","Espinoza, N."],["dc.contributor.author","Burt, J."],["dc.contributor.author","Anglada-Escudé, G."],["dc.contributor.author","Béjar, V. J. S."],["dc.contributor.author","Caballero, J. A."],["dc.contributor.author","Collins, K. A."],["dc.contributor.author","Collins, K. I."],["dc.contributor.author","Cortés-Contreras, M."],["dc.contributor.author","Díez-Alonso, E."],["dc.contributor.author","Feng, F."],["dc.contributor.author","Hatzes, A."],["dc.contributor.author","Hellier, C."],["dc.contributor.author","Henning, T."],["dc.contributor.author","Jeffers, S. V."],["dc.contributor.author","Kaltenegger, L."],["dc.contributor.author","Kürster, M."],["dc.contributor.author","Madden, J."],["dc.contributor.author","Molaverdikhani, K."],["dc.contributor.author","Montes, D."],["dc.contributor.author","Narita, N."],["dc.contributor.author","Nowak, G."],["dc.contributor.author","Ofir, A."],["dc.contributor.author","Oshagh, M."],["dc.contributor.author","Parviainen, H."],["dc.contributor.author","Quirrenbach, A."],["dc.contributor.author","Reffert, S."],["dc.contributor.author","Reiners, A."],["dc.contributor.author","Rodríguez-López, C."],["dc.contributor.author","Schlecker, M."],["dc.contributor.author","Stock, S."],["dc.contributor.author","Trifonov, T."],["dc.contributor.author","Winn, J. N."],["dc.contributor.author","Zapatero Osorio, M. R."],["dc.contributor.author","Zechmeister, M."],["dc.contributor.author","Amado, P. J."],["dc.contributor.author","Anderson, D. R."],["dc.contributor.author","Batalha, N. E."],["dc.contributor.author","Bauer, F. F."],["dc.contributor.author","Bluhm, P."],["dc.contributor.author","Burke, C. J."],["dc.contributor.author","Butler, R. P."],["dc.contributor.author","Caldwell, D. A."],["dc.contributor.author","Chen, G."],["dc.contributor.author","Crane, J. D."],["dc.contributor.author","Dragomir, D."],["dc.contributor.author","Dressing, C. D."],["dc.contributor.author","Dynes, S."],["dc.contributor.author","Jenkins, J. M."],["dc.contributor.author","Kaminski, A."],["dc.contributor.author","Klahr, H."],["dc.contributor.author","Kotani, T."],["dc.contributor.author","Lafarga, M."],["dc.contributor.author","Latham, D. W."],["dc.contributor.author","Lewin, P."],["dc.contributor.author","McDermott, S."],["dc.contributor.author","Montañés-Rodríguez, P."],["dc.contributor.author","Morales, J. C."],["dc.contributor.author","Murgas, F."],["dc.contributor.author","Nagel, E."],["dc.contributor.author","Pedraz, S."],["dc.contributor.author","Ribas, I."],["dc.contributor.author","Ricker, G. R."],["dc.contributor.author","Rowden, P."],["dc.contributor.author","Seager, S."],["dc.contributor.author","Shectman, S. A."],["dc.contributor.author","Tamura, M."],["dc.contributor.author","Teske, J."],["dc.contributor.author","Twicken, J. D."],["dc.contributor.author","Vanderspeck, R."],["dc.contributor.author","Wang, S. X."],["dc.contributor.author","Wohler, B."],["dc.date.accessioned","2020-12-10T18:11:50Z"],["dc.date.available","2020-12-10T18:11:50Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1051/0004-6361/201935801"],["dc.identifier.eissn","1432-0746"],["dc.identifier.issn","0004-6361"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/74158"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Planetary system around the nearby M dwarf GJ 357 including a transiting, hot, Earth-sized planet optimal for atmospheric characterization"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","A21"],["dc.bibliographiccitation.journal","Astronomy and Astrophysics"],["dc.bibliographiccitation.volume","609"],["dc.contributor.author","Akinsanmi, B."],["dc.contributor.author","Oshagh, M."],["dc.contributor.author","Santos, N. C."],["dc.contributor.author","Barros, S. C. C."],["dc.date.accessioned","2020-12-10T18:11:36Z"],["dc.date.available","2020-12-10T18:11:36Z"],["dc.date.issued","2017"],["dc.identifier.doi","10.1051/0004-6361/201731215"],["dc.identifier.eissn","1432-0746"],["dc.identifier.issn","0004-6361"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/74076"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Detecting transit signatures of exoplanetary rings using SOAP3.0"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]