Gaurava Kumar Jaisawal

2023

ERASSt J040515.6-745202, an X-ray burster in the Magellanic Bridge

Haberl, F., Vasilopoulos, G., Maitra, C., Valdes, F., Lang, D., Doroshenko, V., Ducci, L., Kreykenbohm, I., Rau, A., Weber, P., Wilms, J., Maggi, P., Bailyn, C. D., Jaisawal, G. K., Ray, P. S. & Treiber, H., 2023, In: Astronomy and Astrophysics. 669, 10 p., A66.

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Magnetar spin-down glitch clearing the way for FRB-like bursts and a pulsed radio episode

Younes, G., Baring, M. G., Harding, A. K., Enoto, T., Wadiasingh, Z., Pearlman, A. B., Ho, W. C. G., Guillot, S., Arzoumanian, Z., Borghese, A., Gendreau, K., Gogus, E., Güver, T., Van der horst, A. J., Hu, C-P., Jaisawal, G. K., Kouveliotou, C., Lin, L. & Majid, W. A., 2023, (Accepted/In press) In: Nature Astronomy.

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NICER observation of LS V+44 17 during the record high outburst of 2022-2023

Mandal, M., Pal, S., Gendreau, K. C., Malacaria, C., Buz Iwakiri, W., Chakrabarty, D., Arzoumanian, Z., Jaisawal, G. K., Sanna, A. & Ferrara, E. C., 5 Jan 2023

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Rebrightening of 1 Crab from LS V+44 17 observed by Swift/BAT and NICER

Pal, S., Mandal, M., Gendreau, K. C., Malacaria, C., Buz Iwakiri, W., Arzoumanian, Z., Jaisawal, G. K., Sanna, A., Wolff, M. T., Ferrara, E. C., Salganik, A., Coley, J. B., Pottschmidt, K., Steiner, J. F., Ng, M. & Ray, P. S., 20 Jan 2023

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The unaltered pulsar: GRO J1750-27, a supercritical X-ray neutron star that does not blink an eye

Malacaria, C., Ducci, L., Falanga, M., Altamirano, D., Bozzo, E., Guillot, S., Jaisawal, G. K., Kretschmar, P., Ng, M., Pradhan, P., Rothschild, R., Sanna, A., Thalhammer, P. & Wilms, J., 2023, In: Astronomy and Astrophysics. 669, 10 p., A38.

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2022

Accreting on the Edge: A Luminosity-dependent Cyclotron Line in the Be/X-Ray Binary 2S 1553-542 Accompanied by Accretion Regimes Transition

Malacaria, C., Bhargava, Y., Coley, J. B., Ducci, L., Pradhan, P., Ballhausen, R., Fuerst, F., Islam, N., Jaisawal, G. K., Jenke, P., Kretschmar, P., Kreykenbohm, I., Pottschmidt, K., Sokolova-Lapa, E., Staubert, R., Wilms, J., Wilson-Hodge, C. A. & Wolff, M. T., 2022, In: Astrophysical Journal. 927, 2, 8 p., 194.

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A NICER look at thermonuclear X-ray bursts from Aql X-1

Güver, T., Boztepe, T., Ballantyne, D. R., Bostancí, Z. F., Bult, P., Jaisawal, G. K., Göğüş, E., Strohmayer, T. E., Altamirano, D., Guillot, S. & Chakrabarty, D., 2022, In: Monthly Notices of the Royal Astronomical Society. 510, 2, p. 1577–1596

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AstroSat observation of X-ray dips and state transition in the black hole candidate MAXI J1803–298

Jana, A., Naik, S., Jaisawal, G. K., Chhotaray, B., Kumari, N. & Gupta, S., 2022, In: Monthly Notices of the Royal Astronomical Society. 511, 3, p. 3922–3936 15 p.

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Burst–Disk Interaction in 4U 1636–536 as Observed by NICER

Güver, T., Bostancı, Z. F., Boztepe, T., Göğüş, E., Bult, P., Kashyap, U., Chakraborty, M., Ballantyne, D. R., Ludlam, R. M., Malacaria, C., Jaisawal, G. K., Strohmayer, T. E., Guillot, S. & Ng, M., 2022, In: Astrophysical Journal. 935, 2, 17 p., 154.

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GRB 221009A: NICER follow-up observations

Iwakiri, W., Jaisawal, G. K., Younes, G., Wadiasingh, Z., Guillot, S., Gendreau, K. C., Arzoumanian, Z., Ferrara, E. C., Mihara, T., Pasham, D. R., Miller, J. M., Sanna, A. & Malacaria, C., 11 Oct 2022

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INTEGRAL/JEM-X and NICER follow-up observations of IGR J11435-6109 and 1E 1145.1-6141

Jaisawal, G. K., Chenevez, J., Ng, M., Ray, P. S., Gendreau, K. C. & Arzoumanian, Z., 9 Nov 2022

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INTEGRAL/JEM-X detection of high mass X-ray binary pulsars IGR J11435-6109 and 1E 1145.1-6141

Jaisawal, G. K. & Chenevez, J., 3 Nov 2022

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INTEGRAL/JEM-X detects a new outburst of the X-ray transient IGR J12341-6143

Jaisawal, G. K. & Chenevez, J., 4 Oct 2022

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MAXI J1957+032: a new accreting millisecond X-ray pulsar in an ultra-compact binary

Sanna, A., Bult, P., NG, M., Ray, P. S., Jaisawal, G. K., Burderi, L., Di Salvo, T., Riggio, A., Altamirano, D., Strohmayer, T. E., Manca, A., Gendreau, K. C., Chakrabarty, D., Iwakiri, W. & Iaria, R., 2022, In: Monthly Notices of the Royal Astronomical Society. 516, 1, p. L76–L80

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NICER and INTEGRAL/JEM-X observations of 2E 1050.8-6200

Jaisawal, G. K., Chenevez, J., Gendreau, K. C. & Arzoumanian, Z., 6 Oct 2022

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NICER and NUSTAR discovery of an extremely deep cyclotron resonant scattering feature in the Be/X-ray binary GRO J1750-27

Malacaria, C., Coley, J. B., Ducci, L., Fuerst, F., Jaisawal, G. K., Kretschmar, P., Pradhan, P. & Wilms, J., 25 Feb 2022

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NICER confirms a new outburst from SAX J1808.4-3658

Sanna, A., Bult, P. M., Gendreau, K. C., Arzoumanian, Z., Jaisawal, G. K., Altamirano, D., Ng, M., Chakrabarty, D., Ray, P. S., Negoro, H., Iwakiri, W., Mihara, T. & Serino, M., 19 Aug 2022

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NICER detects a type I X-ray burst from the M15 field

Ng, M., Sanna, A., Bult, P. M., Jaisawal, G. K., Homan, J., Papitto, A., Negoro, H., Iwakiri, W., Mihara, T., Chakrabarty, D., Gendreau, K. C. & Ho, W. C. G., 6 Sep 2022

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NICER discovers 314 Hz pulsations from MAXI J1957+032

Ng, M., Bult, P. M., Gendreau, K. C., Arzoumanian, Z., Sanna, A., Ho, W. C. G., Guillot, S., Jaisawal, G. K., Güver, T. & Chakrabarty, D., 19 Jun 2022

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NICER measures the binary orbit of MAXI J1816-195

Bult, P. M., Sanna, A., Ng, M., Chakrabarty, D., Guillot, S., Gendreau, K. C., Arzoumanian, Z., Strohmayer, T. E., Chenevez, J., Altamirano, D., Jaisawal, G. K. & Ferrara, E. C., 13 Jun 2022

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NICER monitoring of the outburst from the transient X-ray pulsar XTE J1829-098

Wolff, M. T., Ray, P. S., Ng, M., Pradhan, P., Pottschmidt, K., Corbet, R. H. D., Gendreau, K. C., Jaisawal, G. K., Sanna, A., Coley, J. B., Guillot, S., Malacaria, C. & Wilms, J., 17 Aug 2022

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NICER observations of X-ray transient LXT 221107A: an exceptional flare from the star HD 251108 (2RXS J060415.1+124554)

Pasham, D., Hamaguchi, K., Miller, J. M., Enoto, T., Jaisawal, G. K., Ng, M., Guenther, H. M., Bult, P., Sanna, A., Buisson, D. J. K., Strohmayer, T., Arzoumanian, Z., Gendreau, K. C., Wevers, T. & Guolo, M., 11 Nov 2022

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Serendipitous detection of an X-ray transient (possibly 2E 1050.8-6200) in the Galactic plane with INTEGRAL/JEM-X

Jaisawal, G. K. & Chenevez, J., 23 Sep 2022

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Strong changes in the X-ray behavior of XTE J1701-462

Homan, J., Altamirano, D., Sanna, A., Yang, L., Lin, D., Motta, S. E., Jaisawal, G. K., Gendreau, K., Arzoumanian, Z., Chakrabarty, D. & Ng, M., 24 Sep 2022

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Support for a 244 day Period in XTE J1829-098 from Swift BAT, MAXI and RXTE PCA Observations

Corbet, R. H. D., Coley, J. B., Gendreau, K. C., Guillot, S., Islam, N., Jaisawal, G. K., Malacaria, C., Ng, M., Pottschmidt, K., Pradhan, P., Ray, P. S., Sanna, A., Wilms, J. & Wolff, M. T., 12 Sep 2022

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The Discovery of the 528.6 Hz Accreting Millisecond X-Ray Pulsar MAXI J1816–195

Bult, P., Altamirano, D., Arzoumanian, Z., Chakrabarty, D., Chenevez, J., Ferrara, E. C., Gendreau, K. C., Guillot, S., Güver, T., Iwakiri, W., Jaisawal, G. K., Mancuso, G. C., Malacaria, C., Ng, M., Sanna, A., Strohmayer, T. E., Wadiasingh, Z. & Wolff, M. T., 2022, In: The Astrophysical Journal. Letters. 935, 2, 6 p., L32.

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The Thermonuclear X-Ray Bursts of 4U 1730–22

Bult, P., Mancuso, G. C., Strohmayer, T. E., Albayati, A. C., Altamirano, D., Buisson, D. J. K., Chenevez, J., Guillot, S., Güver, T., Iwakiri, W., Jaisawal, G. K., Ng, M., Sanna, A. & Swank, J. H., 2022, In: Astrophysical Journal. 140, 1, 10 p., 81.

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X-ray view of the 2021 outburst of SXP 15.6: Constraints on the binary orbit and magnetic field of the neutron star

Vasilopoulos, G., Jaisawal, G. K., Maitra, C., Haberl, F., Maggi, P. & Karaferias, A. S., 2022, In: Astronomy and Astrophysics. 664, 12 p., A194.

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XTE J1701-462 continues its rise in the soft state

Homan, J., Altamirano, D., Sanna, A., Jaisawal, G. K., Yang, L., Ng, M., Bult, P. M., Gendreau, K. C. & Iwakiri, W., 9 Sep 2022

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2021

Accretion properties of MAXI J1813-095 during its failed outburst in 2018: Paper

Jana, A., Jaisawal, G. K., Naik, S., Kumari, N., Chatterjee, D., Chatterjee, K., Bhowmick, R., Chakrabarti, S. K., Chang, H-K. & Debnath, D., 2021, In: Research in Astronomy and Astrophysics. 21, 5, 12 p., 125.

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A Comprehensive X-Ray Report on AT2019wey

Yao, Y., Kulkarni, S. R., Gendreau, K. C., Jaisawal, G. K., Enoto, T., Grefenstette, B. W., Marshall, H. L., García, J. A., Ludlam, R. M., Pike, S. N., Ng, M., Zhang, L., Altamirano, D., Jaodand, A., Cenko, S. B., Remillard, R. A., Steiner, J. F., Negoro, H., Brightman, M., Lien, A., & 8 othersWolff, M. T., Ray, P. S., Mukai, K., Wadiasingh, Z., Arzoumanian, Z., Kawai, N., Mihara, T. & Strohmayer, T. E., 2021, In: Astrophysical Journal. 920, 2, 18 p., 121.

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A Month of Monitoring the New Magnetar Swift J1555.2-5402 during an X-Ray Outburst

Enoto, T., Ng, M., Hu, C. P., Güver, T., Jaisawal, G. K., O'Connor, B., Gögüs, E., Lien, A., Kisaka, S., Wadiasingh, Z., Majid, W. A., Pearlman, A. B., Arzoumanian, Z., Bansal, K., Blumer, H., Chakrabarty, D., Gendreau, K., Ho, W. C. G., Kouveliotou, C., Ray, P. S., & 6 othersStrohmayer, T. E., Younes, G., Palmer, D. M., Sakamoto, T., Akahori, T. & Eie, S., 2021, In: Astrophysical Journal Letters. 920, 1, 16 p., L4.

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AstroSat Observation of X-ray Binary MAXI J1803-298

Jana, A., Jaisawal, G. K., Chhotaray, B., Naik, S., Kumari, N. & Gupta, S., 15 May 2021

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AstroSat observations of eclipsing high mass X-ray binary pulsar OAO 1657-415

Jaisawal, G. K., Naik, S., Epili, P. R., Chhotaray, B., Jana, A. & Agrawal, P. C., 2021, In: Journal of Astrophysics and Astronomy. 42, 2, 11 p., 72.

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Brightening of MAXI J0903-531 Seen with Fermi GBM and Swift BAT, and a Candidate Orbital Period

Corbet, R. H. D., Jenke, P., Ballhausen, R., Becker, P. A., Coley, J. B., Fuerst, F., Islam, N., Jaisawal, G. K., Kretschmar, P., Malacaria, C., Pottschmidt, K., Rothschild, R. E., Thalhammer, P., Wilms, J., Wilson-Hodge, C. A. & Wolff, M. T., 21 Jun 2021

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Broadband X-ray burst spectroscopy of the fast-radio-burst-emitting Galactic magnetar

Younes, G., Baring, M. G., Kouveliotou, C., Arzoumanian, Z., Enoto, T., Doty, J., Gendreau, K. C., Göğüş, E., Guillot, S., Güver, T., Harding, A. K., Ho, W. C. G., van der Horst, A. J., Jaisawal, G. K., Kaneko, Y., LaMarr, B. J., Lin, L., Majid, W., Okajima, T., Pope, J., & 5 othersRay, P. S., Roberts, O. J., Saylor, M., Steiner, J. F. & Wadiasingh, Z., 2021, In: Nature Astronomy. 5, p. 408-413

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Broad-band X-ray observations of the 2018 outburst of the changing-look active galactic nucleus NGC 1566

Jana, A., Kumari, N., Nandi, P., Naik, S., Chatterjee, A., Jaisawal, G. K., Hayasaki, K. & Ricci, C., 2021, In: Monthly Notices of the Royal Astronomical Society. 507, 1, p. 687-703

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Complex optical/UV and X-ray variability in Seyfert 1 galaxy Mrk 509

Kumari, N., Pal, M., Naik, S., Jana, A., Jaisawal, G. K. & Kushwaha, P., 2021, In: Publications of the Astronomical Society of Australia. 38, 15 p., e042.

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Detection of X-ray pulsations at the lowest observed luminosity of Be/X-ray binary pulsar EXO 2030+375 with AstroSat

Jaisawal, G. K., Naik, S., Gupta, S., Agrawal, P. C., Jana, A., Chhotaray, B. & Epili, P. R., 2021, In: Journal of Astrophysics and Astronomy. 42, 2, 12 p., 33.

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Discovery of Thermonuclear Type-I X-ray Bursts from the X-ray binary MAXI J1807+132

Albayati, A. C., Altamirano, D., Jaisawal, G. K., Bult, P., Rapisarda, S., Mancuso, G. C., Güver, T., Arzoumanian, Z., Chakrabarty, D., Chenevez, J., Court, J. M. C., Gendreau, K. C., Guillot, S., Keek, L., Malacaria, C. & Strohmayer, T. E., 2021, In: Monthly Notices of the Royal Astronomical Society. 501, 1, p. 261–268

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Enhanced x-ray emission coinciding with giant radio pulses from the Crab Pulsar

Enoto, T., Terasawa, T., Kisaka, S., Hu, C-P., Guillot, S., Lewandowska, N., Malacaria, C., Ray, P. S., Ho, W. C. G., Harding, A. K., Okajima, T., Arzoumanian, Z., Gendreau, K. C., Wadiasingh, Z., Markwardt, C. B., Soong, Y., Kenyon, S., Bogdanov, S., Majid, W. A., Güver, T., & 17 othersJaisawal, G. K., Foster, R., Murata, Y., Takeuchi, H., Takefuji, K., Sekido, M., Yonekura, Y., Misawa, H., Tsuchiya, F., Aoki, T., Tokumaru, M., Honma, M., Kameya, O., Oyama, T., Asano, K., Shibata, S. & Tanaka, S. J., 2021, In: Science. 372, 6538, p. 187-190

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Initial results of a NICER X-ray monitoring of the magnetar, Swift J1555.2-5402

Enoto, T., Ng, M., Hu, C-P., Bansal, K., Gendreau, K., Arzoumanian, Z., Strohmayer, T., Wadiasingh, Z., Guver, T., B. Pearlman, A., Majid, W. A., Kouveliotou, C., Coti Zelati, F., Borghese, A., Rea, N., Luca Israel, G., Esposito, P. & Jaisawal, G. K., 4 Jun 2021

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INTEGRAL/JEM-X detection of MAXI J1803-298

Chenevez, J., Jaisawal, G. K., Schriver Maartensson, A. & Lundahl Andersen, C., 5 May 2021

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Monitoring the X-ray spectra and pulse profile evolution of the Be X-ray binary EXO 2030+375 during the giant outburst of 2021

Pradhan, P., Thalhammer, P., Ballhausen, R., Pottschmidt, K., Kretschmar, P., Fuerst, F., Jaisawal, G. K., Malacaria, C., Coley, J. B., Wolff, M. T., Ferrigno, C., Wilson-Hodge, C. A., Wilms, J., Jenke, P., Kennea, J. & Raman, G., 2021, 1 p.

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NICER detection of periodicity in the new X-ray transient MAXI J0901-531

Ray, P. S., Sanna, A., Gendreau, K. C., Jaisawal, G. K., Kennea, J., Iwakiri, W., Mihara, T., Strohmayer, T. E., Chakrabarty, D., Wolff, M. T., Altamirano, D., Arzoumanian, Z., Jenke, P. & Wilson-Hodge, C. A., 18 Apr 2021

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NICER detection of possibly periodic X-ray absorption dips in MAXI J1803-298

Homan, J., Gendreau, K. C., Sanna, A., Jaisawal, G. K., Buisson, D. J. K., Bult, P. M., Altamirano, D., Neilsen, J. & Kara, E., 6 May 2021

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NICER detects a type I X-ray burst from 4U 1730-22

Bult, P. M., Jaisawal, G. K., Jaodand, A., Ng, M., Chakrabarty, D., Gendreau, K. C., Arzoumanian, Z., Strohmayer, T. E., Chenevez, J. & Iwakiri, W., 2021

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NICER Discovery of Millisecond X-Ray Pulsations and an Ultracompact Orbit in IGR J17494-3030

Ng, M., Ray, P. S., Bult, P., Chakrabarty, D., Jaisawal, G. K., Malacaria, C., Altamirano, D., Arzoumanian, Z., Gendreau, K. C., Güver, T., Kerr, M., Strohmayer, T. E., Wadiasingh, Z. & Wolff, M. T., 2021, In: Astrophysical Journal Letters. 908, 1, 7 p., L15.

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NICER follow-up observations of MAXI J1803-298

Bult, P. M., Gendreau, K. C., Enoto, T., Homan, J., Altamirano, D., Sanna, A., Jaisawal, G. K., Ng, M., Iwakiri, W., Strohmayer, T. E., Arzoumanian, Z. & Steiner, J., 5 May 2021

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NICER follow-up of the Be X-ray pulsar Swift J1626.6-5156

Iwakiri, W., Wolff, M., Pottschmidt, K., Gendreau, K., Negoro, H., Nakajima, M., Mihara, T., Malacaria, C., Chakrabarty, D. & Jaisawal, G. K., 14 Mar 2021

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Gaurava Kumar Jaisawal

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