Results 51 to 60 of about 669,418 (322)
First M87 Event Horizon Telescope Results. III. Data Processing and Calibration [PDF]
Astrophysical Journal, 2019 We present the calibration and reduction of Event Horizon Telescope (EHT) 1.3 mm radio wavelength observations of the supermassive black hole candidate at the center of the radio galaxy M87 and the quasar 3C 279, taken during the 2017 April 5–11 ...Kazunori Akiyama, A. Alberdi, W. Alef, K. Asada, R. Azulay, A. Baczko, D. Ball, M. Baloković, J. Barrett, D. Bintley, L. Blackburn, W. Boland, K. Bouman, G. Bower, M. Bremer, C. Brinkerink, R. Brissenden, S. Britzen, A. Broderick, D. Broguiere, T. Bronzwaer, D. Byun, J. Carlstrom, A. Chael, Chi-kwan Chan, S. Chatterjee, K. Chatterjee, Ming-Tang Chen, Yongjun Chen, I. Cho, P. Christian, J. Conway, J. Cordes, G. Crew, Yuzhu Cui, J. Davelaar, M. De Laurentis, R. Deane, J. Dempsey, G. Desvignes, J. Dexter, S. Doeleman, R. Eatough, H. Falcke, V. Fish, E. Fomalont, R. Fraga-Encinas, P. Friberg, C. Fromm, J. L. Gómez, P. Galison, C. Gammie, Roberto García, O. Gentaz, B. Georgiev, C. Goddi, R. Gold, Minfeng Gu, M. Gurwell, K. Hada, M. Hecht, R. Hesper, L. C. Ho, P. Ho, M. Honma, Chih-Wei L. Huang, Lei Huang, David H. Hughes, S. Ikeda, Makoto Inoue, S. Issaoun, D. J. James, B. Jannuzi, M. Janssen, B. Jeter, Wu Jiang, Michael D. Johnson, S. Jorstad, T. Jung, M. Karami, R. Karuppusamy, T. Kawashima, G. Keating, M. Kettenis, Jae-Young Kim, Junhan Kim, Jongsoo Kim, M. Kino, J. Koay, P. M. Koch, S. Koyama, Michael Kramer, C. Kramer, T. Krichbaum, C. Kuo, T. Lauer, Sang-Sung Lee, Yan-Rong Li, Zhi-Yun Li, M. Lindqvist, Kuo Liu, E. Liuzzo, Wen-Ping Lo, A. Lobanov, L. Loinard, C. Lonsdale, Ruohan Lu, N. MacDonald, J. Mao, S. Markoff, D. Marrone, A. Marscher, I. Martí-Vidal, S. Matsushita, L. Matthews, L. Medeiros, K. Menten, Y. Mizuno, I. Mizuno, J. M. Moran, K. Moriyama, M. Mościbrodzka, C. Müller, H. Nagai, N. Nagar, M. Nakamura, Ramesh Narayan, G. Narayanan, I. Natarajan, R. Neri, C. Ni, A. Noutsos, H. Okino, H. Olivares, G. Ortiz-Léon, T. Oyama, F. Özel, D. Palumbo, N. Patel, U. Pen, D. Pesce, V. Piétu, R. Plambeck, A. PopStefanija, O. Porth, B. Prather, J. A. Preciado-López, D. Psaltis, Hung-Yi Pu, V. Ramakrishnan, R. Rao, M. Rawlings, A. Raymond, L. Rezzolla, B. Ripperda, F. Roelofs, Alan Rogers, Eduardo Ros, M. Rose, A. Roshanineshat, H. Rottmann, A. Roy, C. Ruszczyk, B. Ryan, K. Rygl, Salvador Sánchez, D. Sánchez-Arguelles, M. Sasada, T. Savolainen, F. Schloerb, K. Schuster, Lijing Shao, Zhiqiang Shen, D. Small, B. Sohn, J. SooHoo, F. Tazaki, P. Tiede, R. Tilanus, M. Titus, K. Toma, P. Torne, T. Trent, S. Trippe, Shuichiro Tsuda, I. van Bemmel, H. V. van Langevelde, D. V. van Rossum, J. Wagner, J. Wardle, J. Weintroub, N. Wex, R. Wharton, M. Wielgus, G. Wong, Qingwen Wu, A. Young, K. Young, Z. Younsi, F. Yuan, Ye-Fei Yuan, J. A. Zensus, Guangyao Zhao, Shanwei Zhao, Ziyan Zhu, R. Cappallo, J. Farah, T. Folkers, Z. Meyer-Zhao, D. Michalik, A. Nadolski, H. Nishioka, N. Pradel, R. Primiani, K. Souccar, L. Vertatschitsch, P. Yamaguchi +216 moresemanticscholar +1 more sourceThe Swift X-Ray Telescope [PDF]
SPIE Optics + Photonics, 1999 he Swift Gamma-Ray Explorer is designed to make prompt multiwavelength observations of gamma-ray bursts (GRBs) and GRB afterglows. The X-ray telescope (XRT) enables Swift to determine GRB positions with a few arcseconds accuracy within 100 s of the burst D. Burrows, J. Hill, J. Nousek, A. Wells, G. Chincarini, A. Abbey, A. Beardmore, J. Bosworth, H. Bräuninger, W. Burkert, S. Campana, M. Capalbi, Woo-Jin Chang, O. Citterio, M. Freyberg, P. Giommi, G. Hartner, R. Killough, B. Kittle, R. Klar, C. Mangels, M. McMeekin, Brian J. Miles, A. Moretti, K. Mori, D. Morris, K. Mukerjee, J. Osborne, A. Short, G. Tagliaferri, F. Tamburelli, D. Watson, R. Willingale, M. Zugger +33 moresemanticscholar +1 more sourceHexapod Design For All-Sky Sidereal Tracking [PDF]
, 2016 In this paper we describe a hexapod-based telescope mount system intended to
provide sidereal tracking for the Fly's Eye Camera project -- an upcoming
moderate, 21"/pixel resolution all-sky survey. By exploiting such a kind of
meter-sized telescope mount,Csépány, Gergely, Jaskó, Attila, Mező, György, Mészáros, László, Oláh, Katalin, Pál, András, Vida, Krisztián +6 morecore +2 more sourcesFirst M87 Event Horizon Telescope Results. II. Array and Instrumentation [PDF]
, 2019 The Event Horizon Telescope (EHT) is a very long baseline interferometry (VLBI) array that comprises millimeter- and submillimeter-wavelength telescopes separated by distances comparable to the diameter of the Earth. At a nominal operating wavelength of ~K. Akiyama, A. Alberdi, W. Alef, K. Asada, R. Azulay, A. Baczko, D. Ball, M. Baloković, J. Barrett, D. Bintley, L. Blackburn, W. Boland, K. Bouman, G. Bower, M. Bremer, C. Brinkerink, R. Brissenden, S. Britzen, A. Broderick, D. Broguiere, T. Bronzwaer, D. Byun, J. Carlstrom, A. Chael, Chi-kwan Chan, S. Chatterjee, K. Chatterjee, Ming-Tang Chen, Yongjun Chen, I. Cho, P. Christian, J. Conway, J. Cordes, G. Crew, Yuzhu Cui, J. Davelaar, M. Laurentis, R. Deane, J. Dempsey, G. Desvignes, J. Dexter, S. Doeleman, R. Eatough, H. Falcke, V. Fish, E. Fomalont, R. Fraga-Encinas, P. Friberg, C. Fromm, J. Gómez, P. Galison, C. Gammie, R. García, O. Gentaz, B. Georgiev, C. Goddi, R. Gold, M. Gu, M. Gurwell, K. Hada, M. Hecht, R. Hesper, L. Ho, P. Ho, M. Honma, Chih-Wei L. Huang, Lei Huang, D. Hughes, Shiro Ikeda, M. Inoue, S. Issaoun, D. James, B. Jannuzi, M. Janssen, B. Jeter, Wu Jiang, Michael D. Johnson, S. Jorstad, T. Jung, M. Karami, R. Karuppusamy, T. Kawashima, G. Keating, M. Kettenis, Jae-Young Kim, Junhan Kim, Jongsoo Kim, M. Kino, J. Koay, P. Koch, S. Koyama, M. Kramer, C. Kramer, T. Krichbaum, C. Kuo, T. Lauer, Sang-Sung Lee, Yan-Rong Li, Zhiyuan Li, M. Lindqvist, Kuo Liu, E. Liuzzo, Wen-Ping Lo, A. Lobanov, L. Loinard, C. Lonsdale, R. Lu, N. MacDonald, J. Mao, S. Markoff, D. Marrone, A. Marscher, I. Martí-Vidal, S. Matsushita, L. Matthews, L. Medeiros, K. Menten, Y. Mizuno, I. Mizuno, J. Moran, K. Moriyama, M. Mościbrodzka, C. Müller, H. Nagai, N. Nagar, M. Nakamura, R. Narayan, G. Narayanan, I. Natarajan, R. Neri, C. Ni, A. Noutsos, H. Okino, H. Olivares, G. Ortiz-Léon, T. Oyama, F. Ozel, D. Palumbo, N. Patel, U. Pen, D. Pesce, V. Piétu, R. Plambeck, A. PopStefanija, O. Porth, B. Prather, J. A. Preciado-López, D. Psaltis, Hung-Yi Pu, V. Ramakrishnan, R. Rao, M. Rawlings, A. Raymond, L. Rezzolla, B. Ripperda, F. Roelofs, A. Rogers, E. Ros, M. Rose, A. Roshanineshat, H. Rottmann, A. Roy, C. Ruszczyk, B. Ryan, K. Rygl, S. Sánchez, D. Sánchez-Arguelles, M. Sasada, T. Savolainen, F. Schloerb, K. Schuster, Lijing Shao, Zhi-qiang Shen, D. Small, B. Sohn, J. SooHoo, F. Tazaki, P. Tiede, R. Tilanus, M. Titus, K. Toma, P. Torne, T. Trent, S. Trippe, S. Tsuda, I. Bemmel, H. V. Langevelde, D. V. Rossum, J. Wagner, J. Wardle, J. Weintroub, N. Wex, R. Wharton, M. Wielgus, G. Wong, Qingwen Wu, A. Young, K. Young, Z. Younsi, F. Yuan, Ye-Fei Yuan, J. Zensus, Guangyao Zhao, Shan-Shan Zhao, Ziyan Zhu, J. Algaba, Alexander Allardi, R. Amestica, U. Bach, C. Beaudoin, B. Benson, R. Berthold, J. Blanchard, R. Blundell, S. Bustamente, R. Cappallo, E. Castillo-Dominguez, Chih-Cheng Chang, Shu-Hao Chang, Song-Chu Chang, Chung-Chen Chen, R. Chilson, T. Chuter, R. C. Rosado, I. Coulson, T. Crawford, J. Crowley, J. David, M. Derome, M. Dexter, S. Dornbusch, Kevin A. Dudevoir, S. Dzib, C. Eckert, N. Erickson, W. Everett, A. Faber, J. Farah, Vernon Fath, T. Folkers, D. Forbes, R. Freund, A. Gómez-Ruiz, D. Gale, F. Gao, G. Geertsema, D. Graham, C. Greer, R. Grosslein, F. Gueth, N. Halverson, C. Han, Kuo-Chang Han, Jinchi Hao, Yutaka Hasegawa, J. Henning, A. Hernández-Gómez, R. Herrero-Illana, S. Heyminck, A. Hirota, J. Hoge, Yau-De Huang, C. Impellizzeri, Homin Jiang, A. Kamble, R. Keisler, K. Kimura, Y. Kono, D. Kubo, J. Kuroda, R. Lacasse, R. Laing, E. Leitch, Chao-Te Li, L. Lin, C. Liu, Kuan-Yu Liu, Li‐Ming Lu, R. Marson, P. Martin-Cocher, Kyle D. Massingill, Callie Matulonis, M. McColl, S. McWhirter, H. Messias, Z. Meyer-Zhao, D. Michalik, A. Montaña, W. Montgomerie, M. Mora-Klein, D. Muders, A. Nadolski, S. Navarro, C. Nguyen, H. Nishioka, T. Norton, G. Nystrom, H. Ogawa, P. Oshiro, S. Padin, H. Parsons, S. Paine, J. Penalver, N. Phillips, M. Poirier, N. Pradel, R. Primiani, P. Raffin, A. Rahlin, G. Reiland, C. Risacher, I. Ruiz, Alejandro F. Saez-Madain, R. Sassella, P. Schellart, P. Shaw, K. Silva, H. Shiokawa, David R. Smith, W. Snow, K. Souccar, Don Sousa, Sridharan T. K., R. Srinivasan, William Stahm, A. Stark, K. Story, S. Timmer, L. Vertatschitsch, C. Walther, T. Wei, N. Whitehorn, A. Whitney, D. Woody, J. Wouterloot, M. Wright, P. Yamaguchi, Chen-Yu Yu, M. Zeballos, L. Ziurys +339 moresemanticscholar +1 more sourceSPHERE: the exoplanet imager for the Very Large Telescope [PDF]
Astronomy & Astrophysics, 2019 Observations of circumstellar environments that look for the direct signal of exoplanets and the scattered light from disks have significant instrumental implications.J. Beuzit, A. Vigan, D. Mouillet, K. Dohlen, R. Gratton, A. Boccaletti, J. Sauvage, H. Schmid, M. Langlois, C. Petit, A. Baruffolo, M. Feldt, J. Milli, Z. Wahhaj, L. Abe, U. Anselmi, J. Antichi, R. Barette, J. Baudrand, P. Baudoz, Julien H. Girard +20 moresemanticscholar +1 more sourcePlans for a 10-m Submillimeter-wave Telescope at the South Pole [PDF]
, 1998 A 10 meter diameter submillimeter-wave telescope has been proposed for the
NSF Amundsen-Scott South Pole Station. Current evidence indicates that the
South Pole is the best submillimeter-wave telescope site among all existing or
proposed ground-based ...Carlstrom, John E., Israel, Frank P., Menten, Karl M., Peterson, Jeffrey B., Phillips, T. G., Sironi, Giorgio, Stark, Antony A., Walker, Christopher K. +7 morecore +3 more sources
