Zobrazeno 1 - 10
of 148
pro vyhledávání: '"J. P. Buisson"'
Autor:
Mason Ng, Paul S. Ray, Andrea Sanna, Tod E. Strohmayer, Alessandro Papitto, Giulia Illiano, Arianna C. Albayati, Diego Altamirano, Tuğba Boztepe, Tolga Güver, Deepto Chakrabarty, Zaven Arzoumanian, D. J. K. Buisson, Elizabeth C. Ferrara, Keith C. Gendreau, Sebastien Guillot, Jeremy Hare, Gaurava K. Jaisawal, Christian Malacaria, Michael T. Wolff
Publikováno v:
The Astrophysical Journal Letters, Vol 968, Iss 1, p L7 (2024)
We present the discovery, with the Neutron Star Interior Composition Explorer (NICER), that SRGA J144459.2−604207 is a 447.9 Hz accreting millisecond X-ray pulsar (AMXP), which underwent a 4 week long outburst starting on 2024 February 15. The AMXP
Externí odkaz:
https://doaj.org/article/1b3411362c0c421dabc7e92770c25af5
Autor:
D. L. Moutard, R. M. Ludlam, M. Sudha, D. J. K. Buisson, E. M. Cackett, N. Degenaar, A. C. Fabian, P. Gandhi, J. A. García, A. W. Shaw, J. A. Tomsick
Publikováno v:
The Astrophysical Journal, Vol 968, Iss 2, p 51 (2024)
We present two simultaneous NICER and NuSTAR observations of the ultracompact X-ray binary (UCXB) candidate SLX 1735−269 while the source was in two different spectral states. Using various reflection modeling techniques, we find that xillverCO , a
Externí odkaz:
https://doaj.org/article/9dabe1645d564723af5547554416835b
Autor:
Mason Ng, Andrew K. Hughes, Jeroen Homan, Jon M. Miller, Sean N. Pike, Diego Altamirano, Peter Bult, Deepto Chakrabarty, D. J. K. Buisson, Benjamin M. Coughenour, Rob Fender, Sebastien Guillot, Tolga Güver, Gaurava K. Jaisawal, Amruta D. Jaodand, Christian Malacaria, James C. A. Miller-Jones, Andrea Sanna, Gregory R. Sivakoff, Tod E. Strohmayer, John A. Tomsick, Jakob van den Eijnden
Publikováno v:
The Astrophysical Journal, Vol 966, Iss 2, p 232 (2024)
We report on X-ray (NICER/NuSTAR/MAXI/Swift) and radio (MeerKAT) timing and spectroscopic analysis from a 3 month monitoring campaign in 2022 of a high-intensity outburst of the dipping neutron star low-mass X-ray binary 1A 1744−361. The 0.5–6.8
Externí odkaz:
https://doaj.org/article/5ccdef75a9bf4d379adfc148e20856db
Autor:
Maia A. Williams, Jamie A. Kennea, S. Dichiara, Kohei Kobayashi, Wataru B. Iwakiri, Andrew P. Beardmore, P. A. Evans, Sebastian Heinz, Amy Lien, S. R. Oates, Hitoshi Negoro, S. Bradley Cenko, Douglas J. K. Buisson, Dieter H. Hartmann, Gaurava K. Jaisawal, N. P. M. Kuin, Stephen Lesage, Kim L. Page, Tyler Parsotan, Dheeraj R. Pasham, B. Sbarufatti, Michael H. Siegel, Satoshi Sugita, George Younes, Elena Ambrosi, Zaven Arzoumanian, M. G. Bernardini, S. Campana, Milvia Capalbi, Regina Caputo, Antonino D’Aì, P. D’Avanzo, V. D’Elia, Massimiliano De Pasquale, R. A. J. Eyles-Ferris, Elizabeth Ferrara, Keith C. Gendreau, Jeffrey D. Gropp, Nobuyuki Kawai, Noel Klingler, Sibasish Laha, A. Melandri, Tatehiro Mihara, Michael Moss, Paul O’Brien, Julian P. Osborne, David M. Palmer, Matteo Perri, Motoko Serino, E. Sonbas, Michael Stamatikos, Rhaana Starling, G. Tagliaferri, Aaron Tohuvavohu, Silvia Zane, Houri Ziaeepour
Publikováno v:
The Astrophysical Journal Letters, Vol 946, Iss 1, p L24 (2023)
We report the discovery of the unusually bright long-duration gamma-ray burst (GRB), GRB 221009A, as observed by the Neil Gehrels Swift Observatory (Swift), Monitor of All-sky X-ray Image, and Neutron Star Interior Composition Explorer Mission. This
Externí odkaz:
https://doaj.org/article/aa9d3e5a4bc34e409787ec5c05c1c17c
Autor:
D. L. Moutard, R. M. Ludlam, J. A. García, D. Altamirano, D. J. K. Buisson, E. M. Cackett, J. Chenevez, N. Degenaar, A. C. Fabian, J. Homan, A. Jaodand, S. N. Pike, A. W. Shaw, T. E. Strohmayer, J. A. Tomsick, B. M. Coughenour
Publikováno v:
The Astrophysical Journal, Vol 957, Iss 1, p 27 (2023)
We present the first joint NuSTAR and NICER observations of the ultracompact X-ray binary 4U 0614+091. This source shows quasiperiodic flux variations on the timescale of ∼days. We use reflection modeling techniques to study various components of t
Externí odkaz:
https://doaj.org/article/8519722e181848c79a5b69446eea6b85
Autor:
S. B. Yun, B. W. Grefenstette, R. M. Ludlam, M. C. Brumback, D. J. K. Buisson, G Mastroserio, S. N. Pike
Publikováno v:
The Astrophysical Journal, Vol 947, Iss 2, p 81 (2023)
We present the long-term analysis of GS 1826-238, a neutron star X-ray binary known as the Clocked Burster , using data from NuSTAR StrayCats. StrayCats, a catalog of NuSTAR stray light data, contains data from bright, off-axis X-ray sources that hav
Externí odkaz:
https://doaj.org/article/b0f83c1a03614c2892d3c732bb259f66
Publikováno v:
Annales Pharmaceutiques Françaises. 63:343-349
Resume Pour degrader les proteines, les cellules eucaryotes disposent de deux systemes principaux de degradation que sont le systeme des proteases lysosomales et le systeme du proteasome, ubiquitine et ATP-dependant. Cette derniere voie de degradatio
Publikováno v:
Carbon. 38:1411-1417
Polyparaphenylene (PPP) was pyrolyzed at 700°C for increasing treatment times in argon gas and for 6 h in different atmospheres (argon gas, hydrogen gas and under dynamic vacuum). Systematic analysis by X-ray diffraction (XRD), Raman and infrared (I
Publikováno v:
The Journal of Physical Chemistry A. 103:7627-7631
A systematic characterization of chemically reduced Parasexiphenyl (⌀6) by radical anions such as biphenyl and naphthylsodium or potassium in tetrahydrofuran (THF) is presented, and the vibrational properties of this phenylene oligomer have been st
Publikováno v:
The Journal of Physical Chemistry B. 102:7382-7392
In this work, we have used an oligomer model compound approach for the understanding of the vibrational spectra of the principal forms of polyaniline. Selected model compounds have been studied by Raman and infrared (IR) spectroscopies. The observed