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Spectral analysis of new black hole candidate AT2019wey observed by NuSTAR

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Abstract

AT2019wey is a new galactic X-ray binary that was first discovered as an optical transient by the the Asteroid Terrestrial-impact Last Alert System (ATLAS) on December 7, 2019. AT2019wey consists of a black hole candidate as well as a low-mass companion star (Mstar ≲ 1.0M◉) and is likely to have a short orbital period (Porb ≲ 16 h). Although AT2019wey began activation in the X-ray band on March 8, 2020, it did not enter the soft state during almost the entire outburst. In this study, we present a detailed spectral analysis of AT2019wey in the low/hard state during its X-ray outburst on the basis of Nuclear Spectroscopic Telescope Array (NuS TAR) observations. We obtain tight constraints on several of its important physical parameters by applying the state of the art relxill relativistic reflection model family. In particular, we determine that the measured inner radius of the accretion disk is most likely to have extended to the innermost stable circular orbit (ISCO) radius, i.e., \({R_{{\rm{in}}}} = 1.38_{- 0.16}^{+ 0.23}\,{R_{{\rm{ISCO}}}}\). Hence, assuming Rin=RISCO, we find the spin of AT2019wey to be a* ∼ 0.97, which is close to the extreme and an inner disk inclination angle of i ∼ 22°. Additionally, according to our adopted models, AT2019wey tends to have a relatively high iron abundance of AFe ∼5AFe,◉ and a high disk ionization state of log ξ ∼ 3.4.

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References

  1. J. E. McClintock, R. Narayan, and J. F. Steiner, Space Sci. Rev. 183, 295 (2014), arXiv: 1303.1583.

    Article  ADS  Google Scholar 

  2. S. N. Zhang, W. Cui, and W. Chen, Astrophys. J. 482, L155 (1997), arXiv: astro-ph/9704072.

    Article  ADS  Google Scholar 

  3. A. C. Fabian, M. J. Rees, L. Stella, and N. E. White, Mon. Not. R. Astron. Soc. 238, 729 (1989).

    Article  ADS  Google Scholar 

  4. C. S. Reynolds, Space Sci. Rev. 183, 277 (2014), arXiv: 1302.3260.

    Article  ADS  Google Scholar 

  5. J. A. García, T. Dauser, J. F. Steiner, J. E. McClintock, M. L. Keck, and J. Wilms, Astrophys. J. 808, L37 (2015), arXiv: 1505.03616.

    Article  ADS  Google Scholar 

  6. J. M. Bardeen, W. H. Press, and S. A. Teukolsky, Astrophys. J. 178, 347 (1972).

    Article  ADS  Google Scholar 

  7. J. F. Steiner, R. C. Reis, J. E. McClintock, R. Narayan, R. A. Remillard, J. A. Orosz, L. Gou, A. C. Fabian, and M. A. P. Torres, Mon. Not. R. Astron. Soc. 416, 941 (2011), arXiv: 1010.1013.

    Article  ADS  Google Scholar 

  8. J. M. Miller, M. L. Parker, F. Fuerst, M. Bachetti, F. A. Harrison, D. Barret, S. E. Boggs, D. Chakrabarty, F. E. Christensen, W. W. Craig, A. C. Fabian, B. W. Grefenstette, C. J. Hailey, A. L. King, D. K. Stern, J. A. Tomsick, D. J. Walton, and W. W. Zhang, Astrophys. J. 775, L45 (2013), arXiv: 1308.4669.

    Article  ADS  Google Scholar 

  9. A. L. King, D. J. Walton, J. M. Miller, D. Barret, S. E. Boggs, F. E. Christensen, W. W. Craig, A. C. Fabian, F. Fürst, C. J. Hailey, F. A. Harrison, R. Krivonos, K. Mori, L. Natalucci, D. Stern, J. A. Tomsick, and W. W. Zhang, Astrophys. J. 784, L2 (2014), arXiv: 1401.3646.

    Article  ADS  Google Scholar 

  10. A. M. El-Batal, J. M. Miller, M. T. Reynolds, S. E. Boggs, F. E. Chistensen, W. W. Craig, F. Fuerst, C. J. Hailey, F. A. Harrison, D. K. Stern, J. Tomsick, D. J. Walton, and W. W. Zhang, Astrophys. J. 826, L12 (2016), arXiv: 1607.00343.

    Article  ADS  Google Scholar 

  11. Y. Xu, F. A. Harrison, J. A. García, A. C. Fabian, F. Fürst, P. Gandhi, B. W. Grefenstette, K. K. Madsen, J. M. Miller, M. L. Parker, J. A. Tomsick, and D. J. Walton, Astrophys. J. 852, L34 (2018), arXiv: 1711.01346.

    Article  ADS  Google Scholar 

  12. Y. Xu, F. A. Harrison, J. A. Kennea, D. J. Walton, J. A. Tomsick, J. M. Miller, D. Barret, A. C. Fabian, K. Forster, F. Fürst, P. Gandhi, and J. A. García, Astrophys. J. 865, 18 (2018), arXiv: 1805.07705.

    Article  ADS  Google Scholar 

  13. J. A. García, J. F. Steiner, V. Grinberg, T. Dauser, R. M. T. Connors, J. E. McClintock, R. A. Remillard, J. Wilms, F. A. Harrison, and J. A. Tomsick, Astrophys. J. 864, 25 (2018), arXiv: 1807.01949.

    Article  ADS  Google Scholar 

  14. Y. Dong, J. A. García, J. F. Steiner, and L. Gou, Mon. Not. R. Astron. Soc. 493, 4409 (2020), arXiv: 2002.11922.

    Article  ADS  Google Scholar 

  15. P. A. Draghis, J. M. Miller, E. M. Cackett, E. S. Kammoun, M. T. Reynolds, J. A. Tomsick, and A. Zoghbi, Astrophys. J. 900, 78 (2020), arXiv: 2007.04324.

    Article  ADS  Google Scholar 

  16. Y. Dong, J. A. García, Z. Liu, X. Zhao, X. Zheng, and L. Gou, Mon. Not. R. Astron. Soc. 493, 2178 (2020), arXiv: 2002.03315.

    Article  ADS  Google Scholar 

  17. I. A. Mereminskiy, A. V. Dodin, A. A. Lutovinov, A. N. Semena, V. A. Arefiev, K. E. Atapin, A. A. Belinski, R. A. Burenin, M. V. Burlak, M. V. Eselevich, A. A. Fedotieva, M. R. Gilfanov, N. P. Ikonnikova, R. A. Krivonos, I. Yu. Lapshov, A. R. Lyapin, P. S. Medvedev, S. V. Molkov, K. A. Postnov, M. S. Pshirkov, S. Yu. Sazonov, N. I. Shakura, A. E. Shtykovsky, R. A. Sunyaev, A. M. Tatarnikov, A. Yu. Tkachenko, and S. G. Zheltoukhov, arXiv: 2107.05588.

  18. J. L. Tonry, L. Denneau, A. N. Heinze, B. Stalder, K. W. Smith, S. J. Smartt, C. W. Stubbs, H. J. Weiland, and A. Rest, Publ. Astron. Soc. Pac. 130, 064505 (2018), arXiv: 1802.00879.

    Article  ADS  Google Scholar 

  19. F. J. Masci, R. R. Laher, B. Rusholme, D. L. Shupe, S. Groom, J. Surace, E. Jackson, S. Monkewitz, R. Beck, D. Flynn, S. Terek, W. Landry, E. Hacopians, V. Desai, J. Howell, T. Brooke, D. Imel, S. Wachter, Q. Z. Ye, H. W. Lin, S. B. Cenko, V. Cunningham, U. Rebbapragada, B. Bue, A. A. Miller, A. Mahabal, E. C. Bellm, M. T. Patterson, M. Jurić, V. Z. Golkhou, E. O. Ofek, R. Walters, M. Graham, M. M. Kasliwal, R. G. Dekany, T. Kupfer, K. Burdge, C. B. Cannella, T. Barlow, A. V. Sistine, M. Giomi, C. Fremling, N. Blagorodnova, D. Levitan, R. Riddle, R. M. Smith, G. Helou, T. A. Prince, and S. R. Kulkarni, Publ. Astron. Soc. Pac. 131, 018003 (2019), arXiv: 1902.01872.

    Article  ADS  Google Scholar 

  20. Y. Yao, S. R. Kulkarni, K. B. Burdge, I. Caiazzo, K. De, D. Dong, M. M. Kasliwal, T. Kupfer, J. van Roestel, J. Sollerman, A. Bagdasaryan, E. C. Bellm, S. B. Cenko, A. J. Drake, D. A. Duev, C. Fremling, M. J. Graham, S. Kaye, F. J. M. N. Miranda, T. A. Prince, R. Riddle, B. Rusholme, and M. T. Soumagnac, arXiv: 2012.00169.

  21. Y. Yao, S. R. Kulkarni, K. C. Gendreau, G. K. Jaisawal, T. Enoto, B. W. Grefenstette, H. L. Marshall, J. A. García, R. M. Ludlam, S. N. Pike, M. Ng, L. Zhang, D. Altamirano, A. Jaodand, S. B. Cenko, R. A. Remillard, J. F. Steiner, H. Negoro, M. Brightman, A. Lien, M. T. Wolff, P. S. Ray, K. Mukai, Z. Wadiasingh, Z. Arzoumanian, N. Kawai, T. Mihara, and T. E. Strohmayer, arXiv: 2012.00160.

  22. N. Yadlapalli, V. Ravi, Y. Yao, S. R. Kulkarni, and W. Brisken, Astrophys. J. Lett. 909, L27 (2021), arXiv: 2012.13426.

    Article  ADS  Google Scholar 

  23. F. A. Harrison, W. W. Craig, F. E. Christensen, C. J. Hailey, W. W. Zhang, S. E. Boggs, D. Stern, W. R. Cook, K. Forster, P. Giommi, B. W. Grefenstette, Y. Kim, T. Kitaguchi, J. E. Koglin, K. K. Madsen, P. H. Mao, H. Miyasaka, K. Mori, M. Perri, M. J. Pivovaroff, S. Puccetti, V. R. Rana, N. J. Westergaard, J. Willis, A. Zoglauer, H. An, M. Bachetti, N. M. Barriére, E. C. Bellm, V. Bhalerao, N. F. Brejnholt, F. Fuerst, C. C. Liebe, C. B. Markwardt, M. Nynka, J. K. Vogel, D. J. Walton, D. R. Wik, D. M. Alexander, L. R. Cominsky, A. E. Hornschemeier, A. Hornstrup, V. M. Kaspi, G. M. Madejski, G. Matt, S. Molendi, D. M. Smith, J. A. Tomsick, M. Ajello, D. R. Ballantyne, M. Baloković, D. Barret, F. E. Bauer, R. D. Blandford, W. N. Brandt, L. W. Brenneman, J. Chiang, D. Chakrabarty, J. Chenevez, A. Comastri, F. Dufour, M. Elvis, A. C. Fabian, D. Farrah, C. L. Fryer, E. V. Gotthelf, J. E. Grindlay, D. J. Helfand, R. Krivonos, D. L. Meier, J. M. Miller, L. Natalucci, P. Ogle, E. O. Ofek, A. Ptak, S. P. Reynolds, J. R. Rigby, G. Tagliaferri, S. E. Thorsett, E. Treister, and C. M. Urry, Astrophys. J. 770, 103 (2013), arXiv: 1301.7307.

    Article  ADS  Google Scholar 

  24. K. A. Arnaud, in XSPEC: The First Ten Years: Astronomical Data Analysis Software and Systems V, edited by G. H. Jacoby, and J. Barnes (Tucson, 1996), p. 17.

  25. K. K. Madsen, F. A. Harrison, C. B. Markwardt, H. An, B. W. Grefenstette, M. Bachetti, H. Miyasaka, T. Kitaguchi, V. Bhalerao, S. Boggs, F. E. Christensen, W. W. Craig, K. Forster, F. Fuerst, C. J. Hailey, M. Perri, S. Puccetti, V. Rana, D. Stern, D. J. Walton, N. J. Westergaard, and W. W. Zhang, Astrophys. J. Suppl. Ser. 220, 8 (2015), arXiv: 1504.01672.

    Article  ADS  Google Scholar 

  26. J. F. Steiner, J. E. McClintock, R. A. Remillard, L. Gou, S. Yamada, and R. Narayan, Astrophys. J. 718, L117 (2010), arXiv: 1006.5729.

    Article  ADS  Google Scholar 

  27. A. Toor, and F. D. Seward, Astron. J. 79, 995 (1974).

    Article  ADS  Google Scholar 

  28. J. E. McClintock, and R. A. Remillard, in Black Hole Binaries: Compact Stellar X-ray Sources, edited by R. Bellazzini, E. Costa, G. Matt, and G. Tagliaferri (Cambridge, 2006), pp. 157–214.

  29. D. A. Verner, G. J. Ferland, K. T. Korista, and D. G. Yakovlev, Astrophys. J. 465, 487 (1996), arXiv: astro-ph/9601009.

    Article  ADS  Google Scholar 

  30. J. Wilms, A. Allen, and R. McCray, Astrophys. J. 542, 914 (2000), arXiv: astro-ph/0008425.

    Article  ADS  Google Scholar 

  31. K. Makishima, H. Takahashi, S. Yamada, C. Done, A. Kubota, T. Dotani, K. Ebisawa, T. Itoh, S. Kitamoto, H. Negoro, Y. Ueda, and K. Yamaoka, Publ. Astron. Soc. Jpn. 60, 585 (2008), arXiv: 0801.3315.

    Article  ADS  Google Scholar 

  32. J. García, T. Dauser, A. Lohfink, T. R. Kallman, J. F. Steiner, J. E. Mc-Clintock, L. Brenneman, J. Wilms, W. Eikmann, C. S. Reynolds, and F. Tombesi, Astrophys. J. 782, 76 (2014), arXiv: 1312.3231.

    Article  ADS  Google Scholar 

  33. T. Dauser, J. García, M. L. Parker, A. C. Fabian, and J. Wilms, Mon. Not. R. Astron. Soc.-Lett. 444, L100 (2014), arXiv: 1408.2347.

    Article  ADS  Google Scholar 

  34. T. Dauser, J. Wilms, C. S. Reynolds, and L. W. Brenneman, Mon. Not. R. Astron. Soc. 409, 1534 (2010), arXiv: 1007.4937.

    Article  ADS  Google Scholar 

  35. T. Dauser, J. Garcia, J. Wilms, M. Böck, L. W. Brenneman, M. Falanga, K. Fukumura, and C. S. Reynolds, Mon. Not. R. Astron. Soc. 430, 1694 (2013), arXiv: 1301.4922.

    Article  ADS  Google Scholar 

  36. J. García, and T. R. Kallman, Astrophys. J. 718, 695 (2010), arXiv: 1006.0485.

    Article  ADS  Google Scholar 

  37. J. García, T. R. Kallman, and R. F. Mushotzky, Astrophys. J. 731, 131 (2011), arXiv: 1101.1115.

    Article  ADS  Google Scholar 

  38. J. García, T. Dauser, C. S. Reynolds, T. R. Kallman, J. E. McClintock, J. Wilms, and W. Eikmann, Astrophys. J. 768, 146 (2013), arXiv: 1303.2112.

    Article  ADS  Google Scholar 

  39. A. A. Esin, J. E. McClintock, and R. Narayan, Astrophys. J. 489, 865 (1997), arXiv: astro-ph/9705237.

    Article  ADS  Google Scholar 

  40. I. D. Novikov, and K. S. Thorne, in Astrophysics of Black Holes: Black Holes (Les Astres Occlus), edited by C. DeWitt, and B. DeWitt (New York, 1973), pp. 343–450.

  41. R. R. Ross, and A. C. Fabian, Mon. Not. R. Astron. Soc. 358, 211 (2005), arXiv: astro-ph/0501116.

    Article  ADS  Google Scholar 

  42. P. O. Petrucci, F. Haardt, L. Maraschi, P. Grandi, J. Malzac, G. Matt, F. Nicastro, L. Piro, G. C. Perola, and A. De Rosa, Astrophys. J. 556, 716 (2001), arXiv: astro-ph/0101219.

    Article  ADS  Google Scholar 

  43. J. Poutanen, and I. Vurm, Astrophys. J. 690, L97 (2009), arXiv: 0807.3073.

    Article  ADS  Google Scholar 

  44. J. Malzac, and R. Belmont, Mon. Not. R. Astron. Soc. 392, 570 (2009), arXiv: 0810.4458.

    Article  ADS  Google Scholar 

  45. M. Kolehmainen, C. Done, and M. Díaz Trigo, Mon. Not. R. Astron. Soc. 437, 316 (2014), arXiv: 1310.1219.

    Article  ADS  Google Scholar 

  46. J. A. García, J. F. Steiner, J. E. McClintock, R. A. Remillard, V. Grinberg, and T. Dauser, Astrophys. J. 813, 84 (2015), arXiv: 1505.03607.

    Article  ADS  Google Scholar 

  47. J. A. Tomsick, M. L. Parker, J. A. García, K. Yamaoka, D. Barret, J. L. Chiu, M. Clavel, A. Fabian, F. Fürst, P. Gandhi, V. Grinberg, J. M. Miller, K. Pottschmidt, and D. J. Walton, Astrophys. J. 855, 3 (2018), arXiv: 1801.07267.

    Article  ADS  Google Scholar 

  48. B. You, Y. Tuo, C. Li, W. Wang, S. N. Zhang, S. Zhang, M. Ge, C. Luo, B. Liu, W. Yuan, Z. Dai, J. Liu, E. Qiao, C. Jin, Z. Liu, B. Czerny, Q. Wu, Q. Bu, C. Cai, X. Cao, Z. Chang, G. Chen, L. Chen, T. Chen, Y. Chen, Y. Chen, Y. Chen, W. Cui, W. Cui, J. Deng, Y. Dong, Y. Du, M. Fu, G. Gao, H. Gao, M. Gao, Y. Gu, J. Guan, C. Guo, D. Han, Y. Huang, J. Huo, S. Jia, L. Jiang, W. Jiang, J. Jin, Y. Jin, L. Kong, B. Li, C. Li, G. Li, M. Li, T. Li, W. Li, X. Li, X. Li, X. Li, Y. Li, Z. Li, X. Liang, J. Liao, C. Liu, G. Liu, H. Liu, X. Liu, Y. Liu, B. Lu, F. Lu, X. Lu, Q. Luo, T. Luo, X. Ma, B. Meng, Y. Nang, J. Nie, G. Ou, J. Qu, N. Sai, R. Shang, L. Song, X. Song, L. Sun, Y. Tan, L. Tao, C. Wang, G. Wang, J. Wang, L. Wang, W. Wang, Y. Wang, X. Wen, B. Wu, B. Wu, M. Wu, G. Xiao, S. Xiao, S. Xiong, Y. Xu, J. Yang, S. Yang, Y. Yang, Q. Yi, Q. Yin, Y. You, A. Zhang, C. Zhang, F. Zhang, H. Zhang, J. Zhang, T. Zhang, W. Zhang, W. Zhang, W. Zhang, Y. Zhang, Y. Zhang, Y. Zhang, Y. Zhang, Z. Zhang, Z. Zhang, H. Zhao, X. Zhao, S. Zheng, D. Zhou, J. Zhou, Y. Zhu, and Y. Zhu, Nat. Commun. 12, 1025 (2021), arXiv: 2102.07602.

    Article  ADS  Google Scholar 

  49. J. Goodman, and J. Weare, CAMCoS 5, 65 (2010).

    Article  Google Scholar 

  50. C. S. Reynolds, L. W. Brenneman, A. M. Lohfink, M. L. Trippe, J. M. Miller, A. C. Fabian, and M. A. Nowak, Astrophys. J. 755, 88 (2012), arXiv: 1204.5747.

    Article  ADS  Google Scholar 

  51. J. F. Steiner, and J. E. McClintock, Astrophys. J. 745, 136 (2012), arXiv: 1110.6849.

    Article  ADS  Google Scholar 

  52. M. L. Parker, J. A. Tomsick, J. M. Miller, K. Yamaoka, A. Lohfink, M. Nowak, A. C. Fabian, W. N. Alston, S. E. Boggs, F. E. Christensen, W. W. Craig, F. Fürst, P. Gandhi, B. W. Grefenstette, V. Grinberg, C. J. Hailey, F. A. Harrison, E. Kara, A. L. King, D. Stern, D. J. Walton, J. Wilms, and W. W. Zhang, Astrophys. J. 808, 9 (2015), arXiv: 1506.00007.

    Article  ADS  Google Scholar 

  53. D. J. Walton, K. Mooley, A. L. King, J. A. Tomsick, J. M. Miller, T. Dauser, J. A. García, M. Bachetti, M. Brightman, A. C. Fabian, K. Forster, F. Fürst, P. Gandhi, B. W. Grefenstette, F. A. Harrison, K. K. Madsen, D. L. Meier, M. J. Middleton, L. Natalucci, F. Rahoui, V. Rana, and D. Stern, Astrophys. J. 839, 110 (2017), arXiv: 1609.01293.

    Article  ADS  Google Scholar 

  54. T. Dauser, J. Svoboda, N. Schartel, J. Wilms, M. Dovčiak, M. Ehle, V. Karas, M. Santos-Lleó, and H. L. Marshall, Mon. Not. R. Astron. Soc. 422, 1914 (2012), arXiv: 1112.1796.

    Article  ADS  Google Scholar 

  55. S. C. Noble, J. H. Krolik, and J. F. Hawley, Astrophys. J. 711, 959 (2010), arXiv: 1001.4809.

    Article  ADS  Google Scholar 

  56. J. D. Schnittman, J. H. Krolik, and S. C. Noble, Astrophys. J. 769, 156 (2013), arXiv: 1207.2693.

    Article  ADS  Google Scholar 

  57. J. A. García, A. C. Fabian, T. R. Kallman, T. Dauser, M. L. Parker, J. E. McClintock, J. F. Steiner, and J. Wilms, Mon. Not. R. Astron. Soc. 462, 751 (2016), arXiv: 1603.05259.

    Article  ADS  Google Scholar 

  58. J. A. García, T. R. Kallman, M. Bautista, C. Mendoza, J. Deprince, P. Palmeri, and P. Quinet, in The Problem of the High Iron Abundance in Accretion Disks around Black Holes: Workshop on Astrophysical Opacities (Kalamazoo, 2018), p. 282.

  59. H. Wang, H. Zhou, W. Yuan, and T. Wang, Astrophys. J. 751, L23 (2012), arXiv: 1204.5234.

    Article  ADS  Google Scholar 

  60. R. Duro, T. Dauser, V. Grinberg, I. Miškovičová, J. Rodriguez, J. Tomsick, M. Hanke, K. Pottschmidt, M. A. Nowak, S. Kreykenbohm, M. C. Bel, A. Bodaghee, A. Lohfink, C. S. Reynolds, E. Kendziorra, M. G. F. Kirsch, R. Staubert, and J. Wilms, Astron. Astrophys. 589, A14 (2016), arXiv: 1602.08756.

    Article  Google Scholar 

  61. T. Dauser, J. García, and J. Wilms, Astron. Nachr. 337, 362 (2016), arXiv: 1810.09149.

    Article  ADS  Google Scholar 

  62. A. M. Beloborodov, Astrophys. J. 510, L123 (1999), arXiv: astro-ph/9809383.

    Article  ADS  Google Scholar 

  63. J. F. Steiner, R. A. Remillard, J. A. García, and J. E. McClintock, Astrophys. J. 829, L22 (2016), arXiv: 1609.04592.

    Article  ADS  Google Scholar 

  64. J. F. Steiner, J. A. García, W. Eikmann, J. E. McClintock, L. W. Brenneman, T. Dauser, and A. C. Fabian, Astrophys. J. 836, 119 (2017), arXiv: 1701.03777.

    Article  ADS  Google Scholar 

  65. A. B. Nielsen, J. Phys.-Conf. Ser. 716, 012002 (2016), arXiv: 1604.00778.

    Article  Google Scholar 

  66. M. Axelsson, R. P. Church, M. B. Davies, A. J. Levan, and F. Ryde, Mon. Not. R. Astron. Soc. 412, 2260 (2011), arXiv: 1011.4528.

    Article  ADS  Google Scholar 

  67. T. Fragos, and J. E. McClintock, Astrophys. J. 800, 17 (2015), arXiv: 1408.2661.

    Article  ADS  Google Scholar 

  68. E. M. Méndez, G. E. Brown, C. H. Lee, and I. H. Park, Astrophys. J. 689, L9 (2008), arXiv: 0809.2146.

    Article  ADS  Google Scholar 

  69. E. M. Méndez, Mon. Not. R. Astron. Soc. 413, 183 (2011), arXiv: 1011.6385.

    Article  ADS  Google Scholar 

  70. A. R. King, and U. Kolb, Mon. Not. R. Astron. Soc. 305, 654 (1999), arXiv: astro-ph/9901296.

    Article  ADS  Google Scholar 

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Authors and Affiliations

  1. Key Laboratory for Computational Astrophysics, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, China

    Ye Feng, XueShan Zhao, LiJun Gou, YuFeng Li, Yuan Wang, Nan Jia & ZhenXuan Liao

  2. School of Astronomy and Space Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China

    Ye Feng, XueShan Zhao, LiJun Gou, YuFeng Li, Yuan Wang, Nan Jia & ZhenXuan Liao

  3. Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, 02138, USA

    James F. Steiner

  4. Cahill Centre for Astronomy and Astrophysics, California Institute of Technology, Pasadena, CA, 91125, USA

    Javier A. García

  5. Dr. Karl Remeis-Observatory and Erlangen Centre for Astroparticle Physics, Bamberg, 96052, Germany

    Javier A. García

  6. School of Science, Jimei University, Xiamen, 361021, China

    HuiXian Li

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Corresponding authors

Correspondence to Ye Feng, XueShan Zhao or LiJun Gou.

Additional information

Ye Feng thanks the useful discussions with Prof. Mihoko Yukita on extracting NuSTAR spectrum. Ye Feng also thanks the useful discussions with Yunfeng Chen. The software used is provided by the High Energy Astrophysics Science Archive Research Centre (HEASARC), which is a service of the Astrophysics Science Division at NASA/GSFC and the High Energy Astrophysics Division of the Smithsonian Astrophysical Observatory. This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Space Science Data Center (SSDC, Italy) and the California Institute of Technology (Caltech, USA). LiJun Gou is supported by the National Program on Key Research and Development Project (Grant No. 2016YFA0400804), the National Natural Science Foundation of China (Grant No. U1838114), and the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB23040100).

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Feng, Y., Zhao, X., Gou, L. et al. Spectral analysis of new black hole candidate AT2019wey observed by NuSTAR. Sci. China Phys. Mech. Astron. 65, 219512 (2022). https://doi.org/10.1007/s11433-021-1790-7

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  • DOI: https://doi.org/10.1007/s11433-021-1790-7

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