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2018

 

HD 149277: a rare short-period SB2 system with a subsynchronously rotating magnetic He-rich primary. J. F. González, S. Hubrig, S. P. Järvinen, and M. Schöller. MNRAS, 481:L30, 2018. [ DOI | arXiv | ADS ]

Keywords: binaries: spectroscopic, stars: chemically peculiar, stars: individual: HD 149277, stars: magnetic field, stars: massive, stars: rotation

 

VizieR Online Data Catalog: KOINet. Study of exoplanet systems via TTVs (von Essen+, 2018). C. von Essen, A. Ofir, S. Dreizler, E. Agol, J. Freudenthal, J. Hernandez, S. Wedemeyer, V. Parkash, H. J. Deeg, S. Hoyer, B. M. Morris, A. C. Becker, L. Sun, S. H. Gu, E. Herrero, L. Tal-Or, K. Poppenhaeger, M. Mallonn, S. Albrecht, S. Khalafinejad, P. Boumis, C. Delgado-Correal, D. C. Fabrycky, R. Janulis, S. Lalitha, A. Liakos, S. Mikolaitis, M. L. Moyano D'Angelo, E. Sokov, E. Pakstiene, A. Popov, V. Krushinsky, I. Ribas, M. M. S. Rodriguez, S. Rusov, I. Sokova, G. Tautvaisiene, and X. Wang. VizieR Online Data Catalog, 361, 2018. [ ADS ]

Keywords: Stars: double and multiple, Exoplanets, Photometry

 

YaPSI: a new database of evolutionary tracks and isochrones. F. Spada, P. Demarque, Y.-C. Kim, T. S. Boyajian, and J. M. Brewer. In C. Chiappini, I. Minchev, E. Starkenburg, and M. Valentini, editors, Rediscovering Our Galaxy, volume 334 of IAU Symposium, page 362, 2018. [ DOI | ADS ]

Keywords: HR diagram, stars: evolution, stars: fundamental parameters, stars: low-mass

 

Radial velocity accuracy prediction of the GREGOR at night spectrograph based on simulated spectra. M. Weber, K. G. Strassmeier, M. Woche, I. Ilyin, and A. Järvinen. In Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, volume 10705 of Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, page 107051E, 2018. [ DOI | ADS ]

 

Kepler Object of Interest Network. I. First results combining ground- and space-based observations of Kepler systems with transit timing variations. C. von Essen, A. Ofir, S. Dreizler, E. Agol, J. Freudenthal, J. Hernández, S. Wedemeyer, V. Parkash, H. J. Deeg, S. Hoyer, B. M. Morris, A. C. Becker, L. Sun, S. H. Gu, E. Herrero, L. Tal-Or, K. Poppenhaeger, M. Mallonn, S. Albrecht, S. Khalafinejad, P. Boumis, C. Delgado-Correal, D. C. Fabrycky, R. Janulis, S. Lalitha, A. Liakos, Š. Mikolaitis, M. L. Moyano D'Angelo, E. Sokov, E. Pakštienė, A. Popov, V. Krushinsky, I. Ribas, M. M. Rodríguez S., S. Rusov, I. Sokova, G. Tautvaišienė, and X. Wang. A&A, 615:A79, 2018. [ DOI | arXiv | ADS ]

Keywords: instrumentation: photometers, methods: data analysis, techniques: photometric, planets and satellites: dynamical evolution and stability

 

K 2 Ultracool Dwarfs Survey. IV. Monster Flares Observed on the Young Brown Dwarf CFHT-BD-Tau 4. R. R. Paudel, J. E. Gizis, D. J. Mullan, S. J. Schmidt, A. J. Burgasser, P. K. G. Williams, and E. Berger. ApJ, 861:76, 2018. [ DOI | ADS ]

Keywords: brown dwarfs, stars: flare, stars: individual: CFHT-BD-Tau 4

 

Study and Classification of SDSS Spectra for Byurakan-Iras Galaxies. A. M. Mickaelian, G. S. Harutyunyan, and A. Sarkissian. Astronomy Letters, 44:351, 2018. [ DOI | ADS ]

Keywords: infrared, galaxiesmethods, observationalastronomical databases, miscellaneousgalaxies, activegalaxies, starburst

 

Letter from the Editor. K. G. Strassmeier. Astronomische Nachrichten, 339:9, 2018. [ DOI | ADS ]

 

Detection of a centrifugal magnetosphere in one of the most massive stars in the ρ Oph star-forming cloud. S. Hubrig, M. Schöller, S. P. Järvinen, M. Küker, A. F. Kholtygin, and P. Steinbrunner. Astronomische Nachrichten, 339:72, 2018. [ DOI | arXiv | ADS ]

 

GJ 1214: Rotation period, starspots, and uncertainty on the optical slope of the transmission spectrum. M. Mallonn, E. Herrero, I. G. Juvan, C. v. Essen, A. Rosich, I. Ribas, T. Granzer, X. Alexoudi, and K. G. Strassmeier. A&A, 614:A35, 2018. [ DOI | arXiv | ADS ]

Keywords: techniques: photometric, stars: activity, stars: individual: GJ1214, starspots

 

VizieR Online Data Catalog: Differential photometry of GJ1214 (Mallonn+, 2018). M. Mallonn, E. Herrero, I. G. Juvan, C. von Essen, A. Rosich, I. Ribas, T. Granzer, X. Alexoudi, and K. G. Strassmeier. VizieR Online Data Catalog, 361, 2018. [ ADS ]

Keywords: Stars: variable, Stars: M-type, Planets, Exoplanets, Photometry: CCD

 

The CARMENES Search for Exoplanets around M Dwarfs: A Low-mass Planet in the Temperate Zone of the Nearby K2-18. P. Sarkis, T. Henning, M. Kürster, T. Trifonov, M. Zechmeister, L. Tal-Or, G. Anglada-Escudé, A. P. Hatzes, M. Lafarga, S. Dreizler, I. Ribas, J. A. Caballero, A. Reiners, M. Mallonn, J. C. Morales, A. Kaminski, J. Aceituno, P. J. Amado, V. J. S. Béjar, H.-J. Hagen, S. Jeffers, A. Quirrenbach, R. Launhardt, C. Marvin, and D. Montes. 155:257, 2018. [ DOI | ADS ]

Keywords: stars: activity, stars: individual: K2-18, stars: low-mass

 

K2 Ultracool Dwarfs Survey. III. White Light Flares Are Ubiquitous in M6-L0 Dwarfs. R. R. Paudel, J. E. Gizis, D. J. Mullan, S. J. Schmidt, A. J. Burgasser, P. K. G. Williams, and E. Berger. ApJ, 858:55, 2018. [ DOI | arXiv | ADS ]

Keywords: stars: activity, stars: flare, stars: individual: 2MASS J12321827-0951502, TRAPPIST-1

 

Weak Magnetic Fields in Two Herbig Ae Systems: The SB2 AK Sco and the Presumed Binary HD 95881. S. P. Järvinen, T. A. Carroll, S. Hubrig, I. Ilyin, M. Schöller, F. Castelli, C. A. Hummel, M. G. Petr-Gotzens, H. Korhonen, G. Weigelt, M. A. Pogodin, and N. A. Drake. ApJL, 858:L18, 2018. [ DOI | arXiv | ADS ]

Keywords: binaries: spectroscopic, stars: abundances, stars: individual: AK Sco, HD 95881, stars: magnetic field, stars: pre-main sequence

 

Magnetic and pulsational variability of Przybylski's star (HD 101065). S. Hubrig, S. P. Järvinen, J. Madej, V. D. Bychkov, I. Ilyin, M. Schöller, and L. V. Bychkova. MNRAS, 477:3791, 2018. [ DOI | arXiv | ADS ]

Keywords: stars: abundances, stars: chemically peculiar, stars: individual: Przybylski's star, stars: magnetic field, stars: oscillations, stars: rotation

 

PEPSI deep spectra. III. Chemical analysis of the ancient planet-host star Kepler-444. C. E. Mack, K. G. Strassmeier, I. Ilyin, S. C. Schuler, F. Spada, and S. A. Barnes. A&A, 612:A46, 2018. [ DOI | arXiv | ADS ]

Keywords: stars: abundances, stars: atmospheres, stars: late-type, stars: activity, planetary systems

 

PEPSI deep spectra. II. Gaia benchmark stars and other M-K standards. K. G. Strassmeier, I. Ilyin, and M. Weber. A&A, 612:A45, 2018. [ DOI | arXiv | ADS ]

Keywords: stars: atmospheres, stars: late-type, stars: abundances, stars: activity, stars: fundamental parameters

 

PEPSI deep spectra. I. The Sun-as-a-star. K. G. Strassmeier, I. Ilyin, and M. Steffen. A&A, 612:A44, 2018. [ DOI | arXiv | ADS ]

Keywords: Sun: photosphere, Sun: abundances, atlases, methods: observational, techniques: spectroscopic

 

ASASSN-18di: Discovery of a Powerful Flare on a Mid-M Dwarf. R. Rodríguez, S. J. Schmidt, T. Jayasinghe, K. Z. Stanek, J. L. Prieto, B. Shappee, C. S. Kochanek, T. A. Thompson, J. Shields, T. W.-S. Holoien, D. Bersier, and J. Brimacombe. Research Notes of the American Astronomical Society, 2:8, 2018. [ DOI | arXiv | ADS ]

 

Tracking of an electron beam through the solar corona with LOFAR. G. Mann, F. Breitling, C. Vocks, H. Aurass, M. Steinmetz, K. G. Strassmeier, M. M. Bisi, R. A. Fallows, P. Gallagher, A. Kerdraon, A. Mackinnon, J. Magdalenic, H. Rucker, J. Anderson, A. Asgekar, I. M. Avruch, M. E. Bell, M. J. Bentum, G. Bernardi, P. Best, L. Bîrzan, A. Bonafede, J. W. Broderick, M. Brüggen, H. R. Butcher, B. Ciardi, A. Corstanje, F. d. Gasperin, E. d. Geus, A. Deller, S. Duscha, J. Eislöffel, D. Engels, H. Falcke, R. Fender, C. Ferrari, W. Frieswijk, M. A. Garrett, J. Grießmeier, A. W. Gunst, M. van Haarlem, T. E. Hassall, G. Heald, J. W. T. Hessels, M. Hoeft, J. Hörandel, A. Horneffer, E. Juette, A. Karastergiou, W. F. A. Klijn, V. I. Kondratiev, M. Kramer, M. Kuniyoshi, G. Kuper, P. Maat, S. Markoff, R. McFadden, D. McKay-Bukowski, J. P. McKean, D. D. Mulcahy, H. Munk, A. Nelles, M. J. Norden, E. Orru, H. Paas, M. Pandey-Pommier, V. N. Pandey, R. Pizzo, A. G. Polatidis, D. Rafferty, W. Reich, H. Röttgering, A. M. M. Scaife, D. J. Schwarz, M. Serylak, J. Sluman, O. Smirnov, B. W. Stappers, M. Tagger, Y. Tang, C. Tasse, S. ter Veen, S. Thoudam, M. C. Toribio, R. Vermeulen, R. J. van Weeren, M. W. Wise, O. Wucknitz, S. Yatawatta, P. Zarka, and J. A. Zensus. A&A, 611:A57, 2018. [ DOI | ADS ]

Keywords: acceleration of particles, instrumentation: interferometers, techniques: interferometric, Sun: radio radiation, Sun: flares, Sun: corona

 

The magnetic variability of the β cep star ξ1 CMa. S. P. Järvinen, S. Hubrig, M. Schöller, and I. Ilyin. New Astronomy, 62:37, 2018. [ DOI | arXiv | ADS ]

Keywords: Stars: Magnetic fields, Stars: Oscillations, Stars: Individual (ξ1 CMa)

 

Constraining the weak-wind problem: an XMM-HST campaign for the magnetic O9.7 V star HD 54879. T. Shenar, L. M. Oskinova, S. P. Järvinen, P. Luckas, R. Hainich, H. Todt, S. Hubrig, A. A. C. Sander, I. Ilyin, and W.-R. Hamann. Contributions of the Astronomical Observatory Skalnate Pleso, 48:139, 2018. [ ADS ]

Keywords: stars: massive, stars: magnetic field, stars: mass-loss

 

KELT-21b: A Hot Jupiter Transiting the Rapidly Rotating Metal-poor Late-A Primary of a Likely Hierarchical Triple System. M. C. Johnson, J. E. Rodriguez, G. Zhou, E. J. Gonzales, P. A. Cargile, J. R. Crepp, K. Penev, K. G. Stassun, B. S. Gaudi, K. D. Colón, D. J. Stevens, K. G. Strassmeier, I. Ilyin, K. A. Collins, J. F. Kielkopf, T. E. Oberst, L. Maritch, P. A. Reed, J. Gregorio, V. Bozza, S. Calchi Novati, G. DAgo, G. Scarpetta, R. Zambelli, D. W. Latham, A. Bieryla, W. D. Cochran, M. Endl, J. Tayar, A. Serenelli, V. Silva Aguirre, S. P. Clarke, M. Martinez, M. Spencer, J. Trump, M. D. Joner, A. G. Bugg, E. G. Hintz, D. C. Stephens, A. Arredondo, A. Benzaid, S. Yazdi, K. K. McLeod, E. L. N. Jensen, D. A. Hancock, R. L. Sorber, D. H. Kasper, H. Jang-Condell, T. G. Beatty, T. Carroll, J. Eastman, D. James, R. B. Kuhn, J. Labadie-Bartz, M. B. Lund, M. Mallonn, J. Pepper, R. J. Siverd, X. Yao, D. H. Cohen, I. A. Curtis, D. L. DePoy, B. J. Fulton, M. T. Penny, H. Relles, C. Stockdale, T.-G. Tan, and S. Villanueva, Jr. 155:100, 2018. [ DOI | arXiv | ADS ]

Keywords: planets and satellites: detection, planets and satellites: gaseous planets, methods: observational, stars: individual: HD 332124, techniques: photometric, techniques: radial velocities

 

2MASS J11151597+1937266: A Young, Dusty, Isolated, Planetary-mass Object with a Potential Wide Stellar Companion. C. A. Theissen, A. J. Burgasser, D. C. Bardalez Gagliuffi, K. K. Hardegree-Ullman, J. Gagné, S. J. Schmidt, and A. A. West. ApJ, 853:75, 2018. [ DOI | arXiv | ADS ]

Keywords: brown dwarfs, circumstellar matter, infrared: stars, proper motions, stars: individual: 2MASS J11151597+1937266, 2MASS J11131089+2110086

 

The First Post-Kepler Brightness Dips of KIC 8462852. T. S. Boyajian, R. Alonso, A. Ammerman, D. Armstrong, A. Asensio Ramos, K. Barkaoui, T. G. Beatty, Z. Benkhaldoun, P. Benni, R. O. Bentley, and et al. ApJL, 853:L8, 2018. [ DOI | ADS ]

Keywords: comets: general, stars: activity, stars: individual: KIC 8462852, stars: peculiar

 

High Resolution Optical Spectroscopy of the Classical Nova V5668 Sgr Showing the Presence of Lithium. R. M. Wagner, C. E. Woodward, S. Starrfield, I. Ilyin, and K. Strassmeier. In American Astronomical Society Meeting Abstracts, volume 231 of American Astronomical Society Meeting Abstracts, page #358.10, 2018. [ ADS ]

 

Investigating the Spectroscopic Variability of Magentically Active M Dwarfs In SDSS. J.-P. Ventura, S. J. Schmidt, K. Cruz, E. Rice, and A. Cid. In American Astronomical Society Meeting Abstracts, volume 231 of American Astronomical Society Meeting Abstracts, page #349.39, 2018. [ ADS ]

 

Probing the Long Timescale Evolution of Magnetic Activity of Ultracool Dwarfs. A. Cid, S. J. Schmidt, E. Rice, K. Cruz, and J.-P. Ventura. In American Astronomical Society Meeting Abstracts, volume 231 of American Astronomical Society Meeting Abstracts, page #349.35, 2018. [ ADS ]

 

Age-dating low mass stars using galactic kinematics. R. Kiman, K. Cruz, R. Angus, S. J. Schmidt, and J. K. Faherty. In American Astronomical Society Meeting Abstracts, volume 231 of American Astronomical Society Meeting Abstracts, page #349.23, 2018. [ ADS ]

 

The most powerful white light flare observed on a young brown dwarf. R. R. Paudel, J. E. Gizis, D. Mullan, S. J. Schmidt, A. J. Burgasser, P. K. G. Williams, and E. Berger. In American Astronomical Society Meeting Abstracts, volume 231 of American Astronomical Society Meeting Abstracts, page #349.10, 2018. [ ADS ]

 

The True Ultracool Binary Fraction Using Spectral Binaries. D. Bardalez Gagliuffi, A. J. Burgasser, S. J. Schmidt, J. Gagné, J. K. Faherty, K. Cruz, and C. Gelino. In American Astronomical Society Meeting Abstracts, volume 231 of American Astronomical Society Meeting Abstracts, page #158.15, 2018. [ ADS ]

 

A search for the presence of magnetic fields in the two supergiant fast X-ray transients, IGR J08408-4503 and IGR J11215-5952. S. Hubrig, L. Sidoli, K. Postnov, M. Schöller, A. F. Kholtygin, S. P. Järvinen, and P. Steinbrunner. MNRAS, 474:L27, 2018. [ DOI | arXiv | ADS ]

Keywords: magnetic fields, binaries: general, stars: individual: IGR J08408-4503, stars: individual: IGR J11215-5952, supergiants, X-rays: stars

 

The Time-domain Spectroscopic Survey: Target Selection for Repeat Spectroscopy. C. L. MacLeod, P. J. Green, S. F. Anderson, M. Eracleous, J. J. Ruan, J. Runnoe, W. Nielsen Brandt, C. Badenes, J. Greene, E. Morganson, S. J. Schmidt, A. Schwope, Y. Shen, R. Amaro, A. Lebleu, N. Filiz Ak, C. J. Grier, D. Hoover, S. M. McGraw, K. Dawson, P. B. Hall, S. L. Hawley, V. Mariappan, A. D. Myers, I. Pâris, D. P. Schneider, K. G. Stassun, M. A. Bershady, M. R. Blanton, H.-J. Seo, J. Tinker, J. G. Fernández-Trincado, K. Chambers, N. Kaiser, R.-P. Kudritzki, E. Magnier, N. Metcalfe, and C. Z. Waters. 155:6, 2018. [ DOI | arXiv | ADS ]

Keywords: quasars: general, stars: variables: general, surveys