Výsledky vyhledávání - "K. M. Ivarsen"

Akademický článek

Confirmation of the Luminous Blue Variable Status of MWC 930

Autor: A. S. Miroshnichenko, N. Manset, S. V. Zharikov, J. Zsargó, J. A. Juárez Jiménez, J. H. Groh, H. Levato, M. Grosso, R. J. Rudy, E. A. Laag, K. B. Crawford, R. C. Puetter, D. E. Reichart, K. M. Ivarsen, J. B. Haislip, M. C. Nysewander, A. P. LaCluyze

Publikováno v: Advances in Astronomy, Vol 2014 (2014)

We present spectroscopic and photometric observations of the emission-line star MWC 930 (V446 Sct) during its long-term optical brightening in 2006–2013. Based on our earlier data we suggested that the object has features found in Luminous Blue Var

Externí odkaz: https://doaj.org/article/7fbc83f7bf3d4b6aa357e7df6d849134

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Akademický článek

A Search for QPOs in the Blazar OJ287: Preliminary Results from the 2015/2016 Observing Campaign

Autor: S. Zola, M. Valtonen, G. Bhatta, A. Goyal, B. Debski, A. Baran, J. Krzesinski, M. Siwak, S. Ciprini, A. Gopakumar, H. Jermak, K. Nilsson, D. Reichart, K. Matsumoto, K. Sadakane, K. Gazeas, M. Kidger, V. Piirola, F. Alicavus, K. S. Baliyan, A. Berdyugin, D. Boyd, M. Campas Torrent, F. Campos, J. Carrillo Gómez, D. B. Caton, V. Chavushyan, J. Dalessio, D. Dimitrov, M. Drozdz, H. Er, A. Erdem, A. Escartin Pérez, V. Fallah Ramazani, A. V. Filippenko, F. Garcia, F. Gómez Pinilla, M. Gopinathan, J. B. Haislip, J. Harmanen, R. Hudec, G. Hurst, K. M. Ivarsen, M. Jelinek, A. Joshi, M. Kagitani, N. Kaur, W. C. Keel, A. P. LaCluyze, B. C. Lee, E. Lindfors, J. Lozano de Haro, J. P. Moore, M. Mugrauer, R. Naves Nogues, A. W. Neely, R. H. Nelson, W. Ogloza, S. Okano, J. C. Pandey, M. Perri, P. Pihajoki, G. Poyner, J. Provencal, T. Pursimo, A. Raj, R. Reinthal, S. Sadegi, T. Sakanoi, Sameer, J.-L. Salto González, T. Schweyer, F. C. Soldán Alfaro, N. Karaman, E. Sonbas, I. Steele, J. T. Stocke, J. Strobl, L. O. Takalo, T. Tomov, L. Tremosa Espasa, J. R. Valdes, J. Valero Pérez, F. Verrecchia, J. R. Webb, M. Yoneda, M. Zejmo, W. Zheng, J. Telting, J. Saario, T. Reynolds, A. Kvammen, E. Gafton, R. Karjalainen, P. Blay

Publikováno v: Galaxies, Vol 4, Iss 4, p 41 (2016)

We analyse the light curve in the R band of the blazar OJ287, gathered during the 2015/2016 observing season. We did a search for quasi-periodic oscillations (QPOs) using several methods over a wide range of timescales. No statistically significant p

Externí odkaz: https://doaj.org/article/aa4f4b4b35674be9ac64b06137047ad2

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Effective temperatures of cataclysmic-variable white dwarfs as a probe of their evolution

Publikováno v: Monthly Notices of the Royal Astronomical Society. 466:2855-2878

We present HST spectroscopy for 45 cataclysmic variables (CVs), observed with HST/COS and HST/STIS. For 36 CVs, the white dwarf is recognisable through its broad Ly$\alpha$ absorption profile and we measure the white dwarf effective temperatures ($T_

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca1c177a7f68d97768898b23635d9c90
https://doi.org/10.1093/mnras/stw3293

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Lower atmosphere and pressure evolution on Pluto from ground-based stellar occultations, 1988–2016

Autor: Jean Lecacheux, Michaël Gillon, Jean Manfroid, Josselin Desmars, Robert R. Howell, T. R. Marsh, G. Benedetti-Rossi, J. G. Greenhill, A. Dias-Oliveira, Ilan Manulis, G. Wortmann, K. M. Ivarsen, J.-E. Communal, S. Renner, F. Vachier, L. Tzouganatos, M. Irzyk, P. Machado, M. Harnisch, Lawrence H. Wasserman, J. Broughton, V. Lorenzi, W. H. Allen, W. Beisker, G. Murawsky, A. Magazzu, David Polishook, J. Marques Oliveira, A. R. Gomes-Junior, M. Conti, J. P. Godard, M. Lavayssière, G. Krannich, Lawrence A. Molnar, Federica B. Bianco, S. de Visscher, Leslie A. Young, Maxime Devogele, Marcelo Assafin, Alessandro Marchini, B. Kattentidt, P. Barroy, G. Dangl, A. Eberle, J. B. Haislip, K. M. Hill, Nora Morales, Andrew A. Cole, P. Enskonatus, B. Loader, Emilio Molinari, V. S. Dhillon, O. Klös, M. Ait Moulay Larbi, Bruno Sicardy, Tanguy Bertrand, Richard Querel, K. Walzel, Diane Berard, P. Lindner, J. P. Rivet, Y. Moulane, L. Di Fabrizio, Rene Duffard, D. Vérilhac, G. McKay, Raoul Behrend, Emmanuel Jehin, Fabio Salvaggio, Greg Bolt, Ricardo Gil-Hutton, J. Milner, Martin Jelínek, J. Sérot, D. Vernet, Kosmas Gazeas, F. Signoret, K. L. Bath, A. C. Gilmore, E. Lellouch, D. Herald, A. Selva, D. Lanoiselée, M. Boutet, Ph. Bendjoya, Shai Kaspi, E. Meza, John Talbot, S. P. Littlefair, Alain Maury, Roberto Vieira-Martins, Marc W. Buie, F. Jabet, S. Kerr, A. Román, Thomas Widemann, C. Opitom, R. Zanmar Sanchez, P. B. Graham, E. Frappa, Catherine B. Olkin, H.-J. Bode, H. Eichler, J. De Queiroz, K. Lindner, A. P. LaCluyze, Zouhair Benkhaldoun, D. Gault, Alain Doressoundiram, François Forget, Riccardo Papini, T. Dobosz, B. E. Morgado, J. Rovira, B. Lade, Daniel E. Reichart, O. Faragó, R. Jansen, Luigi Mancini, A. Noschese, Noah Brosch, Felipe Braga-Ribas, A. Daassou, H. Pavlov, A. Carbognani, S. Todd, F. Colas, Y. El Azhari, C. Peterson, V. Tsamis, M. Bretton, J. Hattenbach, F. Ciabattari, Rodrigo Leiva, C. Veillet, A. J. Castro Tirado, Joe Pollock, R. Naves, Pablo Santos-Sanz, D. Hampf, D. Neel, J. L. Ortiz, S. Alonso, L. Abe, P. M. Kilmartin, Julio Camargo, J. M. Ohlert, D. Gloistein, K. Tigani, F. Marchis, M. Dohrmann, Richard G. French, Ronan Cunniffe, T. Janik, Tamás Tordai, E. F. Young, S. Parker, G. Bonnoli, A. Pennell, M. Kretlow, P. Sogorb, Z. Moravec, W. Rothe, C. Perelló, K. Guhl, A. B. Giles, B. Gährken, Françoise Roques, Valentin D. Ivanov, Giuseppe Leto

Publikováno v: Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2019, 625, pp.A42. ⟨10.1051/0004-6361/201834281⟩
Astronomy and Astrophysics-A&A, 2019, 625, pp.A42. ⟨10.1051/0004-6361/201834281⟩
Astronomy & Astrophysics
Digibug. Repositorio Institucional de la Universidad de Granada
instname
Astronomy and Astrophysics
Digital.CSIC. Repositorio Institucional del CSIC

This article is dedicated to the memory of H.-J. Bode, J. G. Greenhill and O. Faragó for their long-standing support and participation to occultation campaigns. The work leading to these results has received funding from the European Research Counci

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::44e3c51d815a305399e5d5b02c17a2be
https://eprints.whiterose.ac.uk/146826/1/aa34281-18.pdf

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Transit timing variation and transmission spectroscopy analyses of the hot Neptune GJ3470b

Autor: Saran Poshyachinda, T. R. Marsh, Eamonn Kerins, Daniel E. Reichart, K. M. Ivarsen, J. B. Haislip, Siramas Komonjinda, Wiphu Rujopakarn, V. S. Dhillon, Supachai Awiphan, S. Pichadee

Publikováno v: Awiphan, S, Kerins, E, Pichadee, S, Komonjinda, S, Dhillon, V S, Rujopakarn, W, Poshyachinda, S, Marsh, T R, Reichart, D E, Ivarsen, K M & Haislip, J B 2016, ' Transit timing variation and transmission spectroscopy analyses of the hot Neptune GJ3470b ', Monthly Notices of the Royal Astronomical Society, vol. 463, no. 3 . https://doi.org/10.1093/mnras/stw2148

GJ3470b is a hot Neptune exoplanet orbiting an M dwarf and the first sub-Jovian planet to exhibit Rayleigh scattering. We present transit timing variation (TTV) and transmission spectroscopy analyses of multi-wavelength optical photometry from 2.4-m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::505b24a9982df2f5aa3de2edfa7896b2
https://doi.org/10.1093/mnras/stw2148

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Detection of short-periodic oscillations in UW Vir

Autor: Siramas Komonjinda, Daniel E. Reichart, J. B. Haislip, K. M. Ivarsen, K. Gunsriwiwat, David Mkrtichian, Supachai Awiphan, Wiphu Rujopakarn, A. Foster, J. A. Crain, Vladimir Kouprianov, Saran Poshyachinda

Publikováno v: Information Bulletin on Variable Stars.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c76d4ebd61a01b69c0494c3ae0cd9bdc
https://doi.org/10.22444/ibvs.6221

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IGR J19552+0044: A new asynchronous short period polar: 'Filling the gap between intermediate and ordinary polars'

Publikováno v: Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname

Based on XMM--Newton X-ray observations IGR J19552+0044 appears to be either a pre-polar or an asynchronous polar. We conducted follow-up optical observations to identify the sources and periods of variability precisely and to classify this X-ray sou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b73b1c52f6f05f19dcda5ccfe7af4150
http://arxiv.org/abs/1710.02126

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The remarkable outburst of the highly evolved post-period-minimum dwarf nova SSS J122221.7−311525⋆

Publikováno v: arXiv

We report extensive 3-yr multiwavelength observations of the WZ Sge-type dwarf nova SSS J122221.7-311525 during its unusual double superoutburst, the following decline and in quiescence. The second segment of the superoutburst had a long duration of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::129fdc6923983ea3541a4c515027d48e
https://eprints.soton.ac.uk/406990/

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Stochastic modeling of multiwavelength variability of the classical BL Lac object OJ 287 on timescales ranging from decades to hours

Autor: A. Goyal, Ł. Stawarz, S. Zola, V. Marchenko, M. Soida, K. Nilsson, S. Ciprini, A. Baran, M. Ostrowski, P. J. Wiita, null Gopal-Krishna, A. Siemiginowska, M. Sobolewska, S. Jorstad, A. Marscher, M. F. Aller, H. D. Aller, T. Hovatta, D. B. Caton, D. Reichart, K. Matsumoto, K. Sadakane, K. Gazeas, M. Kidger, V. Piirola, H. Jermak, F. Alicavus, K. S. Baliyan, A. Baransky, A. Berdyugin, P. Blay, P. Boumis, D. Boyd, Y. Bufan, M. Campas Torrent, F. Campos, J. Carrillo Gómez, J. Dalessio, B. Debski, D. Dimitrov, M. Drozdz, H. Er, A. Erdem, A. Escartin Pérez, V. Fallah Ramazani, A. V. Filippenko, E. Gafton, F. Garcia, V. Godunova, F. Gómez Pinilla, M. Gopinathan, J. B. Haislip, S. Haque, J. Harmanen, R. Hudec, G. Hurst, K. M. Ivarsen, A. Joshi, M. Kagitani, N. Karaman, R. Karjalainen, N. Kaur, D. Kozieł-Wierzbowska, E. Kuligowska, T. Kundera, S. Kurowski, A. Kvammen, A. P. LaCluyze, B. C. Lee, A. Liakos, J. Lozano de Haro, J. P. Moore, M. Mugrauer, R. Naves Nogues, A. W. Neely, W. Ogloza, S. Okano, U. Pajdosz, J. C. Pandey, M. Perri, G. Poyner, J. Provencal, T. Pursimo, A. Raj, B. Rajkumar, R. Reinthal, T. Reynolds, J. Saario, S. Sadegi, T. Sakanoi, J. L. Salto González, null Sameer, A. O. Simon, M. Siwak, T. Schweyer, F. C. Soldán Alfaro, E. Sonbas, J. Strobl, L. O. Takalo, L. Tremosa Espasa, J. R. Valdes, V. V. Vasylenko, F. Verrecchia, J. R. Webb, M. Yoneda, M. Zejmo, W. Zheng, P. Zielinski, J. Janik, V. Chavushyan, I. Mohammed, C. C. Cheung, M. Giroletti

Publikováno v: BASE-Bielefeld Academic Search Engine

We present the results of our power spectral density analysis for the BL Lac object OJ\,287, utilizing the {\it Fermi}-LAT survey at high-energy $\gamma$-rays, {\it Swift}-XRT in X-rays, several ground-based telescopes and the {\it Kepler} satellite

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0448d8e121336c74d9d2224b430c32b

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Colour variations in the GRB 120327A afterglow

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
Astron.Astrophys.
Astron.Astrophys., 2017, 607, pp.A29. ⟨10.1051/0004-6361/201731759⟩
Melandri, A, Covino, S, Zaninoni, E, Campana, S, Bolmer, J, Cobb, B E, Gorosabel, J, Kim, J W, Kuin, N P M, Kuroda, D, Malesani, D, Mundell, C G, Nappo, F, Sbarufatti, B, Smith, R J, Steele, I A, Topinka, M, Trotter, A S, Virgili, F J, Bernardini, M G, D’avanzo, P, D’elia, V, Fugazza, D, Ghirlanda, G, Gomboc, A, Greiner, J, Guidorzi, C, Haislip, J B, Hanayama, H, Hanlon, L, Im, M, Ivarsen, K M, Japelj, J, Jelínek, M, Kawai, N, Kobayashi, S, Kopac, D, Lacluyzé, A P, Martin-carrillo, A, Murphy, D, Reichart, D E, Salvaterra, R, Salafia, O S, Tagliaferri, G & Vergani, S D 2017, ' Colour variations in the GRB 120327A afterglow ', Astronomy & Astrophysics, vol. 607, pp. A29 . https://doi.org/10.1051/0004-6361/201731759
NASA Astrophysics Data System
Astronomy and Astrophysics-A&A
Astronomy and Astrophysics-A&A, EDP Sciences, 2017, 607, pp.A29. ⟨10.1051/0004-6361/201731759⟩
Astron.Astrophys., 2017, 607, pp.A29. 〈10.1051/0004-6361/201731759〉

Aims. We present a comprehensive temporal and spectral analysis of the long Swift GRB 120327A afterglow data to investigate possible causes of the observed early-time colour variations. Methods. We collected data from various instruments and telescop

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8a63ce769c2a09747fe7c2229f33e30
http://hdl.handle.net/11392/2378464

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