20092020

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2020

Joint XMM-Newton and NuSTAR observations of the reflection spectrum of III Zw 2

Chamani, W., Koljonen, K. & Savolainen, T., 1 Mar 2020, In : Astronomy and Astrophysics. 635, A172.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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17 Downloads (Pure)

The obscured X-ray binaries V404 Cyg, Cyg X-3, V4641 Sgr, and GRS 1915+105

Koljonen, K. I. I. & Tomsick, J. A., 1 Jul 2020, In : Astronomy & Astrophysics. 639, 23 p., A13.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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35 Downloads (Pure)
2019

Bright Mini-outburst Ends the 12 yr Long Activity of the Black Hole Candidate Swift J1753.5-0127

Zhang, G-B., Bernardini, F., Russell, D. M., Gelfand, J. D., Lasota, J-P., Al Qasim, A., AlMannaei, A., Koljonen, K. I. I., Shaw, A. W., Lewis, F., Tomsick, J. A., Plotkin, R. M., Miller-Jones, J. C. A., Maitra, D., Homan, J., Charles, P. A., Kobel, P., Perez, D. & Doran, R., 1 May 2019, In : Astrophysical Journal. 876, 1, 10 p., 5.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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1 Citation (Scopus)
30 Downloads (Pure)

Modelling the compact jet in MAXI J1836-194 with disc-driven shocks

Peault, M., Malzac, J., Coriat, M., Russell, T. D., Koljonen, K. I. I., Belmont, R., Corbel, S., Drappeau, S., Ferreira, J., Petrucci, P. O., Rodriguez, J. & Russell, D. M., 11 Jan 2019, In : Monthly Notices of the Royal Astronomical Society. 482, 2, p. 2447-2458 12 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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4 Citations (Scopus)
113 Downloads (Pure)

Photoionization Emission Models for the Cyg X-3 X-Ray Spectrum

Kallman, T., McCollough, M., Koljonen, K., Liedahl, D., Miller, J., Paerels, F., Pooley, G., Sako, M., Schulz, N., Trushkin, S. & Corrales, L., 20 Mar 2019, In : Astrophysical Journal. 874, 1, 24 p., 51.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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3 Citations (Scopus)
133 Downloads (Pure)

The Radio/X-Ray Correlation in X-Ray Binaries - Insights from a Hard X-Ray Perspective

Koljonen, K. I. I. & Russell, D. M., 20 Jan 2019, In : Astrophysical Journal. 871, 1, 26.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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4 Citations (Scopus)
147 Downloads (Pure)
2018

A Wildly Flickering Jet in the Black Hole X-Ray Binary MAXI J1535-571

Cristina Baglio, M., Russell, D. M., Casella, P., Al Noori, H., Al Yazeedi, A., Belloni, T., Buckley, D. A. H., Cadolle Bel, M., Ceccobello, C., Corbel, S., Coti Zelati, F., Díaz Trigo, M., Fender, R. P., Gallo, E., Gandhi, P., Homan, J., Koljonen, K. I. I., Lewis, F., Maccarone, T. J., Malzac, J. & 12 others, Markoff, S., Miller-Jones, J. C. A., O'Brien, K., Russell, T. D., Saikia, P., Shahbaz, T., Sivakoff, G. R., Soria, R., Testa, V., Tetarenko, A. J., Van Den Ancker, M. E. & Vincentelli, F. M., 10 Nov 2018, In : Astrophysical Journal. 867, 2, 114.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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2 Citations (Scopus)
113 Downloads (Pure)

Optical Precursors to Black Hole X-Ray Binary Outbursts: An Evolving Synchrotron Jet Spectrum in Swift J1357.2-0933

Russell, D. M., Qasim, A. A., Bernardini, F., Plotkin, R. M., Lewis, F., Koljonen, K. I. I. & Yang, Y. J., 10 Jan 2018, In : Astrophysical Journal. 852, 2, 7 p., 90.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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7 Citations (Scopus)
41 Downloads (Pure)

The hypersoft state of Cygnus X-3: A key to jet quenching in X-ray binaries?

Koljonen, K. I. I., Maccarone, T., McCollough, M. L., Gurwell, M., Trushkin, S. A., Pooley, G. G., Piano, G. & Tavani, M., 1 Apr 2018, In : Astronomy and Astrophysics. 612, A27.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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10 Citations (Scopus)
43 Downloads (Pure)
2017

Gemini/GNIRS infrared spectroscopy of the Wolf-Rayet stellar wind in Cygnus X-3

Koljonen, K. I. I. & Maccarone, T. J., Dec 2017, In : Monthly Notices of the Royal Astronomical Society. 472, 2, p. 2181-2195 15 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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9 Citations (Scopus)
131 Downloads (Pure)

Variable spreading layer in 4U 1608-52 during thermonuclear X-ray bursts in the soft state

Kajava, J. J. E., Koljonen, K. I. I., Nättilä, J., Suleimanov, V. & Poutanen, J., Nov 2017, In : Monthly Notices of the Royal Astronomical Society. 472, 1, p. 78-89 12 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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114 Downloads (Pure)
2015

Revealing the X-ray variability of AGN with principal component analysis

Parker, M. L., Fabian, A. C., Matt, G., Koljonen, K. I. I., Kara, E., Alston, W., Walton, D. J., Marinucci, A., Brenneman, L. & Risaliti, G., 2015, In : Monthly Notices of the Royal Astronomical Society. 447, 1, p. 72--96

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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29 Citations (Scopus)
284 Downloads (Pure)

Unsupervised spectral decomposition of X-ray binaries with application to GX 339-4

Koljonen, K. I. I., 2015, In : Monthly Notices of the Royal Astronomical Society. 447, 4, p. 2981-2991

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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5 Citations (Scopus)
281 Downloads (Pure)
2013

2006 May-July major radio flare episodes in Cygnus X-3: spectrotiming analysis of the X-ray data

Koljonen, K. I. I., McCollough, M. L., Hannikainen, D. C. & Droulans, R., 2013, In : Monthly Notices of the Royal Astronomical Society. 429, 2, p. 1173-1188

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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15 Citations (Scopus)
155 Downloads (Pure)
2012

AGILE detection of Cygnus X-3 gamma-ray active states during the period mid-2009/mid-2010

Bulgarelli, A., Tavani, M., Chen, A. W., Evangelista, Y., Trifoglio, M., Gianotti, F., Piano, G., Sabatini, S., Striani, E., Pooley, G., Trushkin, S., Nizhelskij, N. A., McCollough, M., Koljonen, K. I. I., Hannikainen, D., Lähteenmäki, A., Tammi, J., Lavonen, N., Steeghs, D., Aboudan, A. & 53 others, Argan, A., Barbiellini, G., Campana, R., Caraveo, P., Cattaneo, P. W., Cocco, V., Contessi, T., Costa, E., "D'Ammando", F., Del Monte, E., de Paris, G., Di Cocco, G., Donnarumma, I., Feroci, M., Fiorini, M., Fuschino, F., Galli, M., Giuliani, A., Giusti, M., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Longo, F., Marisaldi, M., Mereghetti, S., Morelli, E., Moretti, E., Morselli, A., Pacciani, L., Pellizzoni, A., Perotti, F., Picozza, P., Pilia, M., Prest, M., Pucella, G., Rapisarda, M., Rappoldi, A., Rubini, A., Soffitta, P., Trois, A., Vallazza, E., Vercellone, S., Vittorini, V., Zambra, A., Zanello, D., Giommi, P., Pittori, C., Verrecchia, F., Santolamazza, P., Lucarelli, F., Colafrancesco, S. & Salotti, L., 2012, In : Astronomy and Astrophysics. 538, p. A63

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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24 Citations (Scopus)
151 Downloads (Pure)

The AGILE monitoring of Cygnus X-3: transient gamma-ray emission and spectral constraints

Piano, G., Tavani, M., Vittorini, V., Trois, A., Giuliani, A., Bulgarelli, A., Evangelista, Y., Coppi, P., Del Monte, E., Sabatini, S., Striani, E., Donnarumma, I., Hannikainen, D., Koljonen, K. I. I., McCollough, M., Pooley, G., Trushkin, S., Zanin, R., Barbiellini, G., Cardillo, M. & 17 others, Cattaneo, P. W., Chen, A. W., Colafrancesco, S., Feroci, M., Fuschino, F., Giusti, M., Longo, F., Morselli, A., Pellizzoni, A., Pittori, C., Pucella, G., Rapisarda, M., Rappoldi, A., Soffitta, P., Trifoglio, M., Vercellone, S. & Verrecchia, F., 2012, In : Astronomy and Astrophysics. 545, id. A110

Research output: Contribution to journalArticleScientificpeer-review

33 Citations (Scopus)
2011

The Anatomy of Major Radio/X-ray Flares in the Enigmatic Microquasar Cygnus X-3

Koljonen, K., McCollough, M., Hannikainen, D., Pooley, G., Trushkin, S., Tavani, M. & Droulans, R., 2011, In : Bulletin of the American Astronomical Society. 43

Research output: Contribution to journalArticleScientific

The re-occurrence of mHz quasi-periodic oscillations in Cygnus X-3

Koljonen, K. I. I., Hannikainen, D. C. & McCollough, M. L., 2011, In : MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY: LETTERS. 416, 1, p. L84-L88

Research output: Contribution to journalArticleScientificpeer-review

11 Citations (Scopus)
2010

The hardness-intensity diagram of Cygnus X-3: revisiting the radio/X-ray states

Koljonen, K. I. I., Hannikainen, D. C., McCollough, M. L., Pooley, G. G. & Trushkin, S. A., 2010, In : Monthly Notices of the Royal Astronomical Society. 406, 1, p. 307-319

Research output: Contribution to journalArticleScientificpeer-review

47 Citations (Scopus)

The nature of the microquasar Cygnus X-3.New multiwavelength observations

Koljonen, K. I. I., McCollough, M. L., Hannikainen, D. C. & Vilhu, O., 2010, In : MEMORIE DELLA SOCIETA ASTRONOMICA ITALIANA. 81, 1, p. 420-425

Research output: Contribution to journalArticleScientificpeer-review

2009

Extreme particle acceleration in the microquasar Cygnus X-3

Tavani, M., Bulgarelli, A., Piano, G., Sabatini, S., Striani, E., Evangelista, Y., Trois, A., Pooley, G., Trushkin, S., Nizhelskij, N. A., McCollough, M., Koljonen, K. I. I., Pucella, G., Giuliani, A., Chen, A. W., Costa, E., Vittorini, V., Trifoglio, M., Gianotti, F., Argan, A. & 50 others, Barbiellini, G., Caraveo, P., Cattaneo, P. W., Cocco, V., Contessi, T., "D'Ammando", F., Del Monte, E., de Paris, G., Di Cocco, G., di Persio, G., Donnarumma, I., Feroci, M., Ferrari, A., Fuschino, F., Galli, M., Labanti, C., Lapshov, I., Lazzarotto, F., Lipari, P., Longo, F., Mattaini, E., Marisaldi, M., Mastropietro, M., Mauri, A., Mereghetti, S., Morelli, E., Morselli, A., Pacciani, L., Pellizzoni, A., Perotti, F., Picocca, P., Pilia, M., Prest, M., Rapisarda, M., Rappoldi, A., Rossi, E., Rubini, A., Scalise, E., Soffitta, P., Vallazza, E., Vercellone, S., Zambra, A., Zanello, D., Pittori, C., Verrecchia, F., Giommi, P., Colafrancesco, S., Santolamazza, P., Antonelli, A. & Salotti, L., 2009, In : Nature. 462, 7273, p. 620-623

Research output: Contribution to journalArticleScientificpeer-review