Λεπτομέρειες βιβλιογραφικής εγγραφής
| Τίτλος: |
Super-Eddington Accretion Geometry: A Remarkable Stability of the Hidden Ultraluminous X-Ray Source Cygnus X-3 |
| Συγγραφείς: |
Mikusincova R, Veledina A, Muleri F, Ciancarella R, Zdziarski A, Green DA, McCollough M, Krawczynski H, Steiner JF, Dovciak M, Ahlberg V, Bianchi S, Di Marco A, Garcia JA, Ingram A, Kaaret P, Kallman T, Kun H, La Monaca F, Lange A, Loktev V, Mastroserio G, Matt G, Emami R, Petrucci P-O, Podgorny J, Poutanen J, Ratheesh A, Rodriguez N, Svoboda J, Tombesi F, Ursini F, Agudo I, Antonelli LA, Bachetti M, Baldini L, Baumgartner WH, Bellazzini R, Bongiorno SD, Bonino R, Brez A, Bucciantini N, Capitanio F, Castellano S, Cavazzuti E, Chen C-T, Ciprini S, Costa E, De Rosa A, Del Monte E, Di Gesu L, Di Lalla N, Donnarumma I, Doroshenko V, Ehlert SR, Enoto T, Evangelista Y, Fabiani S, Ferrazzoli R, Gunji S, Hayashida K, Heyl J, Iwakiri W, Jorstad SG, Karas V, Kislat F, Kitaguchi T, Kolodziejczak JJ, Latronico L, Liodakis I, Maldera S, Manfreda A, Marin F, Marinucci A, Marscher AP, Marshall HL, Massaro F, Mitsuishi I, Mizuno T, Negro M, Yung Ng C, O'Dell SL, Omodei N, Oppedisano C, Papitto A, Pavlov GG, Peirson AL, Perri M, Pesce-Rollins M, Pilia M, Possenti A, Puccetti S, Ramsey BD, Rankin J, Roberts OJ, Romani RW, Sgro C, Slane P, Soffitta P, Spandre G, Swartz DA, Tamagawa T, Tavecchio F, Taverna R, Tawara Y, Tennant AF, Thomas NE, Trois A, Tsygankov SS, Turolla R, Vink J, Weisskopf MC, Wu K, Xie F, Zane S |
| Πηγή: |
Astrophysical Journal, 1 July 2026 |
| Στοιχεία εκδότη: |
American Astronomical Society |
| Έτος έκδοσης: |
2026 |
| Συλλογή: |
Newcastle University Library ePrints Service |
| Περιγραφή: |
© 2026. The Author(s). Published by the American Astronomical Society. Original content from this work may be used under the terms of the https://creativecommons.org/licenses/by/4.0/. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.We report on the average and orbital phase-resolved polarization of Cyg X-3 in the hard state (HS) during the 2023 Imaging X-ray Polarimetry Explorer (IXPE) observational campaign. We find the polarization degree of 21.4% ± 0.4% and polarization angle of (Formula presented) 92.°2±0.°5, compatible within 3σ with the first HS IXPE observation in 2022. As the observed polarization depends on both the accretion geometry and the X-ray emission mechanism, and assuming it arises from reflection from the optically thick envelope surrounding the central source, our result indicates that both are similar in the two HS epochs on year-long timescales despite the source transitioning through an intermediate state in between. We discuss time- and energy-dependent polarization properties and their implications for the geometry and stability of the accretion funnel, finding significant orbital modulation of the polarization properties. |
| Τύπος εγγράφου: |
article in journal/newspaper |
| Περιγραφή αρχείου: |
application/pdf |
| Γλώσσα: |
unknown |
| Relation: |
https://eprints.ncl.ac.uk/312701; https://eprints.ncl.ac.uk/fulltext.aspx?url=312701/E53BD3CB-215B-4C98-B34D-51D3795AEA3D.pdf&pub_id=312701 |
| Διαθεσιμότητα: |
https://eprints.ncl.ac.uk/312701 |
| Rights: |
https://creativecommons.org/licenses/by/4.0/ |
| Αριθμός Καταχώρησης: |
edsbas.7707FAE8 |
| Βάση Δεδομένων: |
BASE |