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We study the 36 brightest radio sources in the Subaru/XMM-Newton Deep Field SXDF). Using MIPS 24 micron data from Spitzer we expect to trace accretion activity, even if it is hidden at optical wavelengths, unless the obscuring column is…

Astrophysics · Physics 2007-05-23 Eleni Vardoulaki , Steve Rawlings , Chris Simpson

We present a velocimetric and spectropolarimetric analysis of 27 observations of the 22-Myr M1 star AU Microscopii (Au Mic) collected with the high-resolution $YJHK$ (0.98-2.35 $\mu$m) spectropolarimeter SPIRou from 2019 September 18 to…

Mid-infrared properties are reported of the west hot spot of the radio galaxy Pictor A with the Wide-field Infrared Survey Explorer (WISE). The mid-infrared counterpart to the hot spot, WISE J051926.26-454554.1, is listed in the AllWISE…

High Energy Astrophysical Phenomena · Physics 2017-12-13 Naoki Isobe , Shoko Koyama , Motoki Kino , Takehiko Wada , Takao Nakagawa , Hideo Matsuhara , Kotaro Niinuma , Makoto Tashiro

We present results from deep radio observations taken with the VLA at a center frequency of 1400 MHz cover a region of the SWIRE Spitzer Legacy survey, centered at 10 46 00, 59 01 00 (J2000). The reduction and cataloging of the radio…

Astrophysics · Physics 2009-11-13 Frazer N. Owen , Glenn E. Morrison

We present preliminary results about the detection of high redshift (U)LIRGs in the Bullet cluster field by the PACS and SPIRE instruments within the Herschel Lensing Survey (HLS) Program. We describe in detail a photometric procedure…

We present a comprehensive study of a low-mass star-forming region,L1251B, at wavelengths from the near-infrared to the millimeter. L1251B, where only one protostar, IRAS 22376+7455, was known previously, is confirmed to be a small group of…

We present the discovery by the SPitzer InfraRed Intensive Transients Survey (SPIRITS) of a likely supernova (SN) in NGC 3556 at only 8.8 Mpc, which, despite its proximity, was not detected by optical searches. A luminous infrared (IR)…

We report on a multi-wavelength study of the recently discovered X-ray transient XMMU J004243.6+412519 in M31, based on data collected with Swift and the 1.8-m Copernico Telescope at Cima Ekar in Asiago (Italy) between 2012 February and…

High Energy Astrophysical Phenomena · Physics 2013-01-17 P. Esposito , S. E. Motta , F. Pintore , L. Zampieri , L. Tomasella

The heating mechanisms of solar white-light flares remain unclear. We present an X1.0 white-light flare on 2022 October 2 (SOL2022-10-02T20:25) observed by the Chinese \ha\ Solar Explorer (CHASE) that provides two-dimensional spectra in the…

Solar and Stellar Astrophysics · Physics 2023-07-25 De-Chao Song , Jun Tian , Y. Li , M. D. Ding , Yang Su , Sijie Yu , Jie Hong , Ye Qiu , Shihao Rao , Xiaofeng Liu , Qiao Li , Xingyao Chen , Chuan Li , Cheng Fang

IGR J0607.4+2205 is a transient Be X-ray binary discovered two decades ago. IGR J0607.4+2205 underwent an outburst in 2023 during which it was observed twice with \textit{NuSTAR}. The main goal of this work is to model the broadband X-ray…

High Energy Astrophysical Phenomena · Physics 2024-02-28 Kinjal Roy , Rahul Sharma , Hemanth Manikantan , Biswajit Paul

A systematic programme of calibration observations was carried out to monitor the performance of the SPIRE FTS instrument on board the Herschel Space Observatory. Observations of planets (including the prime point-source calibrator,…

The variable gamma-ray source HESS J0632+057 is an excellent candidate for a gamma-ray binary. The putative binary system was discovered as a point-like VHE gamma-ray source by HESS. Later measurements by VERITAS yielding no detection,…

High Energy Astrophysical Phenomena · Physics 2019-08-14 T. Jogler , P. Munar-Adrover , M. Ribó , J. M. Paredes

We describe the generation of single-band point source catalogues from submillimetre Herschel-SPIRE observations taken as part of the Science Demonstration Phase of the Herschel Multi-tiered Extragalactic Survey (HerMES). Flux densities are…

Swift J1749.4-2807 is a transient accreting millisecond X-ray pulsars, the first that displayed X-ray eclipses. Therefore it holds a great potential for accurate mass measurements in a low mass X-ray binary system. The determination of the…

High Energy Astrophysical Phenomena · Physics 2015-05-30 P. D'Avanzo , S. Campana , T. Munoz-Darias , T. Belloni , E. Bozzo , M. Falanga , L. Stella

We have obtained a series of high-resolution optical spectra for the brown dwarf 2MASSW J1207334-393254 (2M1207) using the ESO Very Large Telescope with the UVES spectrograph during two consecutive observing nights (time resolution of ~12…

Astrophysics · Physics 2009-11-13 Beate Stelzer , Alexander Scholz , Ray Jayawardhana

Double pulsar systems offer unrivaled advantages for the study of both astrophysics and fundamental physics. But only one has been visible: PSR J0737$-$3039; and its component pulsar B has now rotated out of sight due to the…

High Energy Astrophysical Phenomena · Physics 2025-09-17 Yuyang Wang , Joeri van Leeuwen

The anomalous X-ray pulsars (AXPs) represent a growing class of neutron stars discovered at X-ray energies. While the nature of their multi-wavelength emission mechanism is still under debate, evidence has been recently accumulating in…

Astrophysics · Physics 2009-11-10 Samar Safi-Harb , Jennifer West

We have searched 75 unidentified radio sources selected from the NRAO VLA Sky Survey (NVSS) catalog for the presence of rapidly spinning pulsars and short, dispersed radio bursts. The sources are radio bright, have no identifications or…

Solar and Stellar Astrophysics · Physics 2015-06-15 Deborah Schmidt , Fronefield Crawford , Glen Langston , Claire Gilpin

(Abridged) Quasar studies with Herschel/SPIRE often report host luminosities ranging from 10^{12} to 10^{14} Lsun, suggestive of star formation rates (SFRs) of up to several thousand Msun/yr. Due to the limited spatial resolution of SPIRE,…

Astrophysics of Galaxies · Physics 2025-10-22 E. Hatziminaoglou , H. Messias , R. Souza , A. Borkar , D. Farrah , A. Feltre , G. Magdis , L. K. Pitchford , I. Pérez-Fournon

PSR J1951+2837 is a nearby pulsar with a period of 7.334 s and dispersion measure of DM = 2.9 $\pm$ 0.6 pc cm$^{-3}$, located about 200 or 300 pc from the Sun. It occasionally radiates bright pulses and has been observed by the Large Phased…

High Energy Astrophysical Phenomena · Physics 2025-11-19 T. V. Smirnova , D. J. Zhou , M. A. Kitaeva , S. A. Andrianov , C. Wang , P. F. Wang , J. L. Han , S. A. Tyul'bashev