Results 41 to 50 of about 4,403,550 (384)

The Origin of Gamma-Rays from Globular Clusters [PDF]

, 2010
Fermi has detected gamma-ray emission from eight globular clusters. We suggest that the gamma-ray emission from globular clusters may result from the inverse Compton scattering between relativistic electrons/positrons in the pulsar wind of MSPs in the ...
Cheng, K. S., Chernyshov, D. O., Dogiel, V. A., Hui, C. Y., Kong, A. K. H.   +4 more
core   +2 more sources

INFRARED COUNTERPARTS OF X-RAY GALAXIES

Odessa Astronomical Publications, 2019
Population studies of the extragalactic objects are a major part of the universe large-scale structure study. Apart from radio, infrared, and visible wavelength bands, observations and further identification of extragalactic objects such as galaxies, quasars, blazers, liners, and active star burst regions are also conducted in the X-ray and gamma bands.
Tugay, A. V., Shevchenko, S. Yu.
openaire   +5 more sources

An infrared background-TeV gamma-ray crisis? [PDF]

Physics Letters B, 2000
We consider the implications of the recent determination of the universal infrared background for the propagation of photons up to 20 TeV from the active galaxy Markarian 501 as observed by HEGRA. At 20 TeV the mean free path for photon-photon collisions on the infrared background would be much shorter than the distance to Markarian 501, implying ...
Protheroe, R., Meyer, H.
openaire   +3 more sources

Reliability of Non-Contact Infrared Thermometers for Fever Screening Under COVID-19

Risk Management and Healthcare Policy, 2022
Fan Lai,1,* Xin Li,1,* Qi Wang,1,* Yingjuan Luo,1 Xin Wang,1 Xiuhua Huang,1 Jiajia Zhang,1 Jieru Peng,1 Qin Wang,1 Li Fan,1 Wen Li,1 Junrong Huo,1 Tianjiao Liu,1 Yalan Li,2 Yonghong Lin,1 Xiao Yang1 1Chengdu Women’s and Children’s Central ...
Lai F, Li X, Wang Q, Luo Y, Wang X, Huang X, Zhang J, Peng J, Wang Q, Fan L, Li W, Huo J, Liu T, Li Y, Lin Y, Yang X   +15 more
doaj  

Infrared Sensor Detection and Actuator Treatment Applied during Hemodialysis

Sensors, 2020
Infrared thermography can be applied in different medical systems, for example it can be used to catch the images of living blood vessels. Far infrared rays can be used in a heating machine, which can be applied in the clinical hemodialysis patients ...
Jian-Chiun Liou, Yu-Cheng Hsiao, Cheng-Fu Yang   +2 more
doaj   +1 more source

The X‐Ray, Optical, and Infrared Counterpart to GRB 980703 [PDF]

The Astrophysical Journal, 1999
We report on X-ray, optical and infrared follow-up observations of GRB 980703. We detect a previously unknown X-ray source in the GRB error box; assuming a power law decline we find for its decay index alpha < -0.91 (3-sigma). We invoke host galaxy extinction to match the observed spectral slope with the slope expected from `fireball' models.
Vreeswijk P. M., Galama T. J., Owens A., Oosterbroek T., Geballe T. R., van Paradijs J., Groot P. J., Kouveliotou C., Koshut T., Tanvir N., Wijers R. A. M. J., Pian E., Palazzi E., Frontera F., Masetti N., Robinson C., Briggs M., in 't Zand J. J. M., Heise J., Piro L., Costa E., Feroci M., Antonelli L. A., Hurley K., Greiner J., Smith D. A., Levine A. M., Lipkin Y., Leibowitz E., Lidman C., PIZZELLA, ALESSANDRO, Böhnhardt H., Doublier V., Chaty S., Smail I., Blain A., Hough J. H., Young S., Suntzeff N.   +38 more
openaire   +5 more sources

Multiple-Collision Free-Electron Laser Compton Backscattering for a High-Yield Gamma-Ray Source

Applied Sciences, 2020
We observed multiple-collision free-electron laser (FEL)-Compton backscattering in which a multi-bunch electron beam makes head-on collisions with multi-pulse FELs in an optical cavity, using an infrared FEL system in the storage ring NIJI-IV.
Norihiro Sei, Hiroshi Ogawa, QiKa Jia
doaj   +1 more source

The location of an active nucleus and a shadow of a tidal tail in the ULIRG Mrk 273 [PDF]

, 2011
Analysis of data from the Chandra X-ray Observatory for the double nucleus ULIRG Mrk 273 reveals an absorbed hard X-ray source coincident with the southwest nucleus, implying that this unresolved, near-infrared source is where an active nucleus resides ...
Armus, L., Evans, A. S., Howell, J. H., Iwasawa, K., Komossa, S., Mazzarella, J. M., Petric, A., Sanders, D. B., Surace, J. A., Teng, S. H., U, V., Veilleux, S.   +11 more
core   +2 more sources

The Cosmic Infrared Background: Measurements and Implications [PDF]

, 2001
The cosmic infrared background records much of the radiant energy released by processes of structure formation that have occurred since the decoupling of matter and radiation following the Big Bang.
Altieri B, Aussel H, Beichman CA, Bertin E, Brodd S, Burigana C, Böttcher M, Calzetti D, Clements DL, Coleman GD, Comastri A, Devriendt JEG, Devriendt JEG, Elbaz D, Eli Dwek, Fioc M, Franceschini A, Gispert R, Grupe D, Guiderdoni B, Guy J, Harwit M, Hasinger G, Hauser MG, Henry RC, Holt SS, Isobe T, Jansen RA, Juvela M, Kawara K, Lagache G, Lagache G, Lagache G, Lisenfeld U, Lutz D, Matsuhara H, Mattila K, McConnell ML, Michael G. Hauser, Milliard B, Nikishov AI, Olbers HWM, Pagel BEJ, Peebles PJE, Puget J-L, Puget J-L, Rocca-Volmerange B, Rowan-Robinson M, Sandage A, Schmidt M, Scholl MS, Sciama DW, Setti G, Severgnini P, Stickel M, Sturm E, Takeuchi TT, Taniguchi Y, Tinsley BM, Tinsley BM, Vignati P, Wright EL   +61 more
core   +2 more sources

Impact of Low-Energy Cosmic Rays on Star Formation [PDF]

, 2020
In recent years, exciting developments have taken place in the identification of the role of cosmic rays in star-forming environments. Observations from radio to infrared wavelengths and theoretical modelling have shown that low-energy cosmic rays ( < 1  
M. Padovani, A. Ivlev, D. Galli, S. Offner, N. Indriolo, D. Rodgers-Lee, A. Marcowith, P. Girichidis, A. Bykov, J. Kruijssen   +9 more
semanticscholar   +1 more source