Zobrazeno 1 - 10
of 878
pro vyhledávání: '"Falanga M"'
Autor:
Li, Zhaosheng, Kuiper, L., Pan, Y. Y., Falanga, M., Poutanen, J., Chen, Y. P., Xu, R. X., Ge, M. Y., Huang, Y., Song, L. M., Zhang, S., Lu, F. J., Zhang, S. N.
We report on the broadband spectral and timing properties of the accreting millisecond X-ray pulsar IGR J17498$-$2921 during its April 2023 outburst using data from NICER (1$-$10 keV), NuSTAR (3$-$79 keV), Insight-HXMT (2$-$150 keV), and INTEGRAL (30
Externí odkaz:
http://arxiv.org/abs/2408.12786
Autor:
Bozzo, E., Huenemoerder, D. P., Falanga, M., Paltani, S., Costantini, E., de Plaa, J., Gu, L.
Stellar coronal sources have been observed in the past not only for their astrophysical interest in the field of binary system evolution and interaction, but also for their invaluable roles as benchmarks for plasma spectral models and as calibration
Externí odkaz:
http://arxiv.org/abs/2401.13290
Publikováno v:
Advances in Space Research 74 (2024) 4276-4289
Current generation of ground based gamma-ray telescopes observed dozens of sources of photons above 100 TeV. Supernova remnants, pulsar wind nebulae, young stellar clusters and superbubbles are considered as possible sites of PeV-regime particles pro
Externí odkaz:
http://arxiv.org/abs/2401.06271
Capella is the brightest chromospherically active binary in the sky, hosting a cooler G8III giant (Aa) and an hotter G1III companion (Ab). The source has been extensively observed in the X-rays in the past decades not only for its astrophysical inter
Externí odkaz:
http://arxiv.org/abs/2303.13924
Autor:
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.
Publikováno v:
A&A 669, A38 (2023)
When accreting X-ray pulsars (XRPs) undergo bright X-ray outbursts, their luminosity-dependent spectral and timing features can be analysed in detail. The XRP GRO J1750-27 recently underwent one of such episodes, during which it was observed with $Nu
Externí odkaz:
http://arxiv.org/abs/2211.06367
Publikováno v:
A&A 654, A127 (2021)
Aims: LS 5039 is an enigmatic high-mass gamma-ray binary which hosts a powerful O6.5V companion, but the nature of the compact object is still to be established using multi-wavelength observations. Methods: We analyzed phase-resolved multi-instrument
Externí odkaz:
http://arxiv.org/abs/2104.07711
We study the contributions to the relativistic Fe $K_{\alpha}$ line profile from higher order images (HOIs) produced by strongly deflected rays from the disk which cross the plunging region, located between the innermost stable circular orbit (ISCO)
Externí odkaz:
http://arxiv.org/abs/2104.07707
Publikováno v:
EPJ Web of Conferences, Vol 64, p 00001 (2014)
Externí odkaz:
https://doaj.org/article/fbede69cba134541bdddf0401dfaa637
Autor:
Li, Z. S., Kuiper, L., Falanga, M., Poutanen, J., Tsygankov, S. S., Galloway, D. K., Bozzo, E., Pan, Y. Y., Huang, Y., Zhang, S. N., Zhang, S.
Publikováno v:
A&A 649, A76 (2021)
The accreting millisecond X-ray pulsar Swift J1756.9$-$2508 went into outburst in April 2018 and June 2019, 8.7 yr after the previous activity period. We investigated the temporal, timing and spectral properties of these two outbursts using data from
Externí odkaz:
http://arxiv.org/abs/2102.11687
Autor:
Papitto, A., Falanga, M., Hermsen, W., Mereghetti, S., Kuiper, L., Poutanen, J., Bozzo, E., Ambrosino, F., Zelati, F. Coti, De Falco, V., de Martino, D., Di Salvo, T., Esposito, P., Ferrigno, C., Forot, M., Götz, D., Gouiffes, C., Iaria, R., Laurent, P., Li, J., Li, Z., Mineo, T., Moran, P., Neronov, A., Paizis, A., Rea, N., Riggio, A., Sanna, A., Savchenko, V., Słowikowska, A., Shearer, A., Tiengo, A., Torres, D. F.
In the last 25 years, a new generation of X-ray satellites imparted a significant leap forward in our knowledge of X-ray pulsars. The discovery of accreting and transitional millisecond pulsars proved that disk accretion can spin up a neutron star to
Externí odkaz:
http://arxiv.org/abs/2012.01346