Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Christensen, Finn Erland"'
Autor:
O'Dell, Stephen L., Gaskin, Jessica A., Pareschi, Giovanni, Spiga, Daniele, Madsen, Kristin K., Corsetti, James, Kenyon, Steven, Okajima, Takashi, Rohrback, Scott, Tamura, Keisuke, Zhang, William W., Gurgew, Danielle N., Christensen, Finn Erland, Ferreira, Desiree Della Monica, Gellert, Nis Christian, Massahi, Sonny, Basso, Stefano, Pareschi, Giovanni, Moretti, Alberto, Spiga, Daniele, Valsecchi, Giuseppe, Vernani, Dervis, Stern, Daniel K.
Publikováno v:
Proceedings of SPIE; October 2023, Vol. 12679 Issue: 1 p126791E-126791E-17, 12552327p
Autor:
Maeda, Yoshitomo, Kikuchi, Naomichi, Kurashima, Sho, Ishida, Manabu, Iizuka, Ryo, Hayashi, Takayuki, Okajima, Takashi, Matsumoto, Hironori, Mitsuishi, Ikuyuki, Saji, Shigetaka, Sato, Toshiki, Tachibana, Sasagu, Mori, Hideyuki, Christensen, Finn Erland, Brejnholt, Nicolai, Nitta, Kiyofumi, Uruga, Tomoya
Publikováno v:
Maeda, Y, Kikuchi, N, Kurashima, S, Ishida, M, Iizuka, R, Hayashi, T, Okajima, T, Matsumoto, H, Mitsuishi, I, Saji, S, Sato, T, Tachibana, S, Mori, H, Christensen, F E, Brejnholt, N, Nitta, K & Uruga, T 2017, Reflectivity around the gold L-edges of X-ray reector of the soft X-ray telescope onboard ASTRO-H . in S L O'Dell & G Pareschi (eds), Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII . vol. 10399, 103990Q, SPIE-International Society for Optical Engineering, Proceedings of SPIE-The International Society for Optical Engineering, SPIE Optics + Photonics 2017, San Diego, California, United States, 06/08/2017 . https://doi.org/10.1117/12.2275605
We report the atomic scattering factor in the 11.2-15.4 keV for the ASTRO-H Soft X-ray Telescope (SXT)9 obtained in the ground based measurements. The large effective area of the SXT covers above 10 keV. In fact, the flight data show the spectra of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1202::5d5267a706a312d29eb5c0a01b955c6b
https://orbit.dtu.dk/en/publications/3c339433-4ca0-49c4-b0fe-4e52e28f237b
https://orbit.dtu.dk/en/publications/3c339433-4ca0-49c4-b0fe-4e52e28f237b
Autor:
Spiga, D., Della Monica Ferreira, Desiree, Shortt, B., Bavdaz, M., Bergback Knudsen, E., Bergbäck Knudsen, Erik, Bianucci, G., Christensen, Finn Erland, Civitani, M., Collon, M., Conconi, P., Fransen, S., Marioni, F., Massahi, Sonny, Pareschi, G., Salmaso, B., Jegers, A. S., Tayabaly, K., Valsecchi, G., Westergaard, Niels Jørgen Stenfeldt, Wille, E.
Publikováno v:
Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII
Spiga, D, Della Monica Ferreira, D, Shortt, B, Bavdaz, M, Bergback Knudsen, E, Bergbäck Knudsen, E, Bianucci, G, Christensen, F E, Civitani, M, Collon, M, Conconi, P, Fransen, S, Marioni, F, Massahi, S, Pareschi, G, Salmaso, B, Jegers, A S, Tayabaly, K, Valsecchi, G, Westergaard, N J S & Wille, E 2017, Optical simulations for design, alignment, and performance prediction of silicon pore optics for the ATHENA x-ray telescope . in S L O'Dell & G Pareschi (eds), Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII . vol. 10399, 103990H, SPIE-International Society for Optical Engineering, Proceedings of SPIE-The International Society for Optical Engineering, SPIE Optics + Photonics 2017, San Diego, California, United States, 06/08/2017 . https://doi.org/10.1117/12.2274905
Spiga, D, Della Monica Ferreira, D, Shortt, B, Bavdaz, M, Bergback Knudsen, E, Bergbäck Knudsen, E, Bianucci, G, Christensen, F E, Civitani, M, Collon, M, Conconi, P, Fransen, S, Marioni, F, Massahi, S, Pareschi, G, Salmaso, B, Jegers, A S, Tayabaly, K, Valsecchi, G, Westergaard, N J S & Wille, E 2017, Optical simulations for design, alignment, and performance prediction of silicon pore optics for the ATHENA x-ray telescope . in S L O'Dell & G Pareschi (eds), Optics for EUV, X-Ray, and Gamma-Ray Astronomy VIII . vol. 10399, 103990H, SPIE-International Society for Optical Engineering, Proceedings of SPIE-The International Society for Optical Engineering, SPIE Optics + Photonics 2017, San Diego, California, United States, 06/08/2017 . https://doi.org/10.1117/12.2274905
The ATHENA X-ray observatory is a large-class ESA approved mission, with launch scheduled in 2028. The technology of silicon pore optics (SPO) was selected as baseline to assemble ATHENA’s optic with hundreds of mirror modules, obtained by sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3676b26382b5ec0913c97620ec6ef9d2
http://hdl.handle.net/20.500.12386/26630
http://hdl.handle.net/20.500.12386/26630
Autor:
Nardo, Francesco, Kuvvetli, Irfan, Ferreira, Desiree Della Monica, Massahi, Sonny, Christensen, Finn Erland
Publikováno v:
Proceedings of SPIE; 10/9/2023, Vol. 12679, p1267916-1267916, 1p
Autor:
Madsen, Kristin K., Corsetti, James, Kenyon, Steven, Okajima, Takashi, Rohrback, Scott, Tamura, Keisuke, Zhang, William W., Gurgew, Danielle N., Christensen, Finn Erland, Ferreira, Desiree Della Monica, Gellert, Nis Christian, Massahi, Sonny, Basso, Stefano, Pareschi, Giovanni, Moretti, Alberto, Spiga, Daniele, Valsecchi, Giuseppe, Vernani, Dervis, Stern, Daniel K.
Publikováno v:
Proceedings of SPIE; 10/9/2023, Vol. 12679, p126791E-126791E-17, 1p
Autor:
Gandhi, P., Annuar, A., Lansbury, G. B., Stern, D., Alexander, D. M., Bauer, F. E., Bianchi, S., Boggs, S. E., Boorman, P. G., Brandt, W. N., Brightman, M., Christensen, Finn Erland, Comastri, A., Craig, W. W., Del Moro, A., Elvis, M., Guainazzi, M., Hailey, C. J., Harrison, F. A., Koss, M., Lamperti, I., Malaguti, G., Masini, A., Matt, G., Puccetti, S., Ricci, C., Rivers, E., Walton, D. J., Zhang, W. W.
Publikováno v:
Gandhi, P, Annuar, A, Lansbury, G B, Stern, D, Alexander, D M, Bauer, F E, Bianchi, S, Boggs, S E, Boorman, P G, Brandt, W N, Brightman, M, Christensen, F E, Comastri, A, Craig, W W, Del Moro, A, Elvis, M, Guainazzi, M, Hailey, C J, Harrison, F A, Koss, M, Lamperti, I, Malaguti, G, Masini, A, Matt, G, Puccetti, S, Ricci, C, Rivers, E, Walton, D J & Zhang, W W 2017, ' The weak neutral Fe fluorescence line and long-term X-ray evolution of the Compton-thick AGN in NGC 7674 ', Monthly Notices of the Royal Astronomical Society, vol. 467, no. 4, pp. 4606-4621 . https://doi.org/10.1093/mnras/stx357
We present $NuSTAR$ X-ray observations of the active galactic nucleus (AGN) in NGC 7674. The source shows a flat X-ray spectrum, suggesting that it is obscured by Compton-thick gas columns. Based upon long-term flux dimming, previous work suggested t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f8cf169167ab9f9941c98fedf8b0198
Autor:
Dafni, T., Arik, M., Armengaud, E., Aune, S., Avignone, F. T., Barth, K., Belov, A., Betz, M., Bräuninger, H., Brax, P., Christensen, Finn Erland, Jakobsen, Anders Clemen
Publikováno v:
Dafni, T, Arik, M, Armengaud, E, Aune, S, Avignone, F T, Barth, K, Belov, A, Betz, M, Bräuninger, H, Brax, P, Christensen, F E & Jakobsen, A C 2016, ' An update on the Axion Helioscopes front: Current activities at CAST and the IAXO project ', Nuclear and Particle Physics Proceedings, vol. 273-275, pp. 244-249 . https://doi.org/10.1016/j.nuclphysbps.2015.09.033
Although they have not yet been detected, axions and axion-like particles (ALPs) continue to maintain the interest (even increasingly so) of the rare-event searches community as viable candidates for the Dark Matter of the Universe but also as a solu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1202::4b3553d2504d51e916d4c7b6dc43588e
https://orbit.dtu.dk/en/publications/58fb92d0-3357-4586-98bb-fa935973858e
https://orbit.dtu.dk/en/publications/58fb92d0-3357-4586-98bb-fa935973858e
Autor:
Aird, J., Alexander, D. M., Ballantyne, D. R., Civano, F., Del-Moro, A., Hickox, R. C., Lansbury, G. B., Mullaney, J. R., Bauer, F. E., Brandt, W. N., Comastri, A., Fabian, A. C., Gandhi, P., Harrison, F. A., Luo, Birong, Stern, D., Treister, E., Zappacosta, L., Ajello, M., Assef, R., Balokovic, M., Boggs, S. E., Brightman, M., Christensen, Finn Erland, Craig, W. W., Elvis, M., Forster, K., Grefenstette, B. W., Hailey, C. J., Koss, M., LaMassa, S. M., Madsen, K. K., Puccetti, S., Saez, C., Urry, C. M., Wik, D. R., Zhang, W.
Publikováno v:
Aird, J, Alexander, D M, Ballantyne, D R, Civano, F, Del-Moro, A, Hickox, R C, Lansbury, G B, Mullaney, J R, Bauer, F E, Brandt, W N, Comastri, A, Fabian, A C, Gandhi, P, Harrison, F A, Luo, B, Stern, D, Treister, E, Zappacosta, L, Ajello, M, Assef, R, Balokovic, M, Boggs, S E, Brightman, M, Christensen, F E, Craig, W W, Elvis, M, Forster, K, Grefenstette, B W, Hailey, C J, Koss, M, LaMassa, S M, Madsen, K K, Puccetti, S, Saez, C, Urry, C M, Wik, D R & Zhang, W 2015, ' The NuSTAR Extragalactic Survey: First Direct Measurements of the Greater Than Or Similar To 10 Kev X-Ray Luminosity Function For Active Galactic Nuclei At z > 0.1 ', Astrophysical Journal, vol. 815, no. 1, 66 . https://doi.org/10.1088/0004-637x/815/1/66
We present the first direct measurements of the rest-frame 10-40 keV X-ray luminosity function (XLF) of active galactic nuclei (AGNs) based on a sample of 94 sources at 0.1 Nuclear Spectroscopic Telescope Array (NuSTAR) extragalactic survey program.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1202::dffc249318c5a4edcec0ad8e2785ae65
https://orbit.dtu.dk/en/publications/47f43ddf-e3c6-4ccd-9c33-5cdc36d1e38b
https://orbit.dtu.dk/en/publications/47f43ddf-e3c6-4ccd-9c33-5cdc36d1e38b
Autor:
Grefenstette, Brian W., Reynolds, Stephen P., Harrison, Fiona A., Humensky, T. Brian, Boggs, Steven E., Fryer, Chris L., DeLaney, Tracey, Madsen, Kristin K., Miyasaka, Hiromasa, Wik, Daniel R., Christensen, Finn Erland
Publikováno v:
Grefenstette, B W, Reynolds, S P, Harrison, F A, Humensky, T B, Boggs, S E, Fryer, C L, DeLaney, T, Madsen, K K, Miyasaka, H, Wik, D R & Christensen, F E 2015, ' Locating the most energetic electrons in Cassiopeia A ', Astrophysical Journal, vol. 802, no. 15 .
We present deep (>2.4 Ms) observations of the Cassiopeia A supernova remnant with NuSTAR, which operates in the 3-79 keV bandpass and is the first instrument capable of spatially resolving the remnant above 15 keV. We find that the emission is not en
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1202::03574aaae820e42ea79beb372af55e6b
https://orbit.dtu.dk/en/publications/cab09a82-0a8b-483e-a675-60f82064d757
https://orbit.dtu.dk/en/publications/cab09a82-0a8b-483e-a675-60f82064d757
Autor:
Bachetti, Matteo, Miyasaka, Hiromasa, Harrison, Fiona, Fürst, Felix, Barret, Didier, Bellm, Eric C., Boggs, Steven E., Chakrabarty, Deepto, Chenevez, Jérôme, Christensen, Finn Erland, Craig, William W., Grefenstette, Brian W., Hailey, Charles J., Madsen, Kristin K., Natalucci, Lorenzo, Pottschmidt, Katja, Stern, Daniel, Tomsick, John A., Walton, Dominic J., Wilms, Jörn, Zhang, William
Publikováno v:
Bachetti, M, Miyasaka, H, Harrison, F, Fürst, F, Barret, D, Bellm, E C, Boggs, S E, Chakrabarty, D, Chenevez, J, Christensen, F E, Craig, W W, Grefenstette, B W, Hailey, C J, Madsen, K K, Natalucci, L, Pottschmidt, K, Stern, D, Tomsick, J A, Walton, D J, Wilms, J & Zhang, W 2014, ' NuSTAR detection of 4s Hard X-ray Lags from the Accreting Pulsar GS 0834-430 ', E P J Web of Conferences, vol. 64, 06011 . https://doi.org/10.1051/epjconf/20136406011
The NuSTAR hard X-ray telescope observed the transient Be/X-ray binary GS 0834430 during its 2012 outburst. The source is detected between 3 – 79 keV with high statistical significance, and we were able to perform very accurate spectral and tim
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______1202::207d64618099ee7b7999d616153cd7f5
https://orbit.dtu.dk/en/publications/a09dd647-2921-4560-a361-14153d2784b4
https://orbit.dtu.dk/en/publications/a09dd647-2921-4560-a361-14153d2784b4