Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Strittmatter, Peter A."'
Autor:
Lu, Ru-Sen, Krichbaum, Thomas P., Roy, Alan L., Fish, Vincent L., Doeleman, Sheperd S., Johnson, Michael D., Akiyama, Kazunori, Psaltis, Dimitrios, Alef, Walter, Asada, Keiichi, Beaudoin, Christopher, Bertarini, Alessandra, Blackburn, Lindy, Blundell, Ray, Bower, Geoffrey C., Brinkerink, Christiaan, Broderick, Avery E., Cappallo, Roger, Crew, Geoffrey B., Dexter, Jason, Dexter, Matt, Falcke, Heino, Freund, Robert, Friberg, Per, Greer, Christopher H., Gurwell, Mark A., Ho, Paul T. P., Honma, Mareki, Inoue, Makoto, Kim, Junhan, Lamb, James, Lindqvist, Michael, Macmahon, David, Marrone, Daniel P., Martí-Vidal, Ivan, Menten, Karl M., Moran, James M., Nagar, Neil M., Plambeck, Richard L., Primiani, Rurik A., Rogers, Alan E. E., Ros, Eduardo, Rottmann, Helge, SooHoo, Jason, Spilker, Justin, Stone, Jordan, Strittmatter, Peter, Tilanus, Remo P. J., Titus, Michael, Vertatschitsch, Laura, Wagner, Jan, Weintroub, Jonathan, Wright, Melvyn, Young, Ken H., Zensus, J. Anton, Ziurys, Lucy M.
We report results from very long baseline interferometric (VLBI) observations of the supermassive black hole in the Galactic center, Sgr A*, at 1.3 mm (230 GHz). The observations were performed in 2013 March using six VLBI stations in Hawaii, Califor
Externí odkaz:
http://arxiv.org/abs/1805.09223
Autor:
Fish, Vincent L., Johnson, Michael D., Doeleman, Sheperd S., Broderick, Avery E., Psaltis, Dimitrios, Lu, Ru-Sen, Akiyama, Kazunori, Alef, Walter, Algaba, Juan Carlos, Asada, Keiichi, Beaudoin, Christopher, Bertarini, Alessandra, Blackburn, Lindy, Blundell, Ray, Bower, Geoffrey C., Brinkerink, Christiaan, Cappallo, Roger, Chael, Andrew A., Chamberlin, Richard, Chan, Chi-Kwan, Crew, Geoffrey B., Dexter, Jason, Dexter, Matt, Dzib, Sergio A., Falcke, Heino, Freund, Robert, Friberg, Per, Greer, Christopher H., Gurwell, Mark A., Ho, Paul T. P., Honma, Mareki, Inoue, Makoto, Johannsen, Tim, Kim, Junhan, Krichbaum, Thomas P., Lamb, James, León-Tavares, Jonathan, Loeb, Abraham, Loinard, Laurent, MacMahon, David, Marrone, Daniel P., Moran, James M., Mościbrodzka, Monika, Ortiz-León, Gisela N., Oyama, Tomoaki, Özel, Feryal, Plambeck, Richard L., Pradel, Nicolas, Primiani, Rurik A., Rogers, Alan E. E., Rosenfeld, Katherine, Rottmann, Helge, Roy, Alan L., Ruszczyk, Chester, Smythe, Daniel L., SooHoo, Jason, Spilker, Justin, Stone, Jordan, Strittmatter, Peter, Tilanus, Remo P. J., Titus, Michael, Vertatschitsch, Laura, Wagner, Jan, Wardle, John F. C., Weintroub, Jonathan, Woody, David, Wright, Melvyn, Yamaguchi, Paul, Young, André, Young, Ken H., Zensus, J. Anton, Ziurys, Lucy M.
The Galactic Center black hole Sagittarius A* (Sgr A*) is a prime observing target for the Event Horizon Telescope (EHT), which can resolve the 1.3 mm emission from this source on angular scales comparable to that of the general relativistic shadow.
Externí odkaz:
http://arxiv.org/abs/1602.05527
Autor:
Doeleman, Sheperd S., Fish, Vincent L., Schenck, David E., Beaudoin, Christopher, Blundell, Ray, Bower, Geoffrey C., Broderick, Avery E., Chamberlin, Richard, Freund, Robert, Friberg, Per, Gurwell, Mark A., Ho, Paul T. P., Honma, Mareki, Inoue, Makoto, Krichbaum, Thomas P., Lamb, James, Loeb, Abraham, Lonsdale, Colin, Marrone, Daniel P., Moran, James M., Oyama, Tomoaki, Plambeck, Richard, Primiani, Rurik A., Rogers, Alan E. E., Smythe, Daniel L., SooHoo, Jason, Strittmatter, Peter, Tilanus, Remo P. J., Titus, Michael, Weintroub, Jonathan, Wright, Melvyn, Young, Ken H., Ziurys, Lucy M.
Publikováno v:
Science 338, 355 (2012)
Approximately 10% of active galactic nuclei exhibit relativistic jets, which are powered by accretion of matter onto super massive black holes. While the measured width profiles of such jets on large scales agree with theories of magnetic collimation
Externí odkaz:
http://arxiv.org/abs/1210.6132
Autor:
Fish, Vincent L., Doeleman, Sheperd S., Beaudoin, Christopher, Blundell, Ray, Bolin, David E., Bower, Geoffrey C., Chamberlin, Richard, Freund, Robert, Friberg, Per, Gurwell, Mark A., Honma, Mareki, Inoue, Makoto, Krichbaum, Thomas P., Lamb, James, Marrone, Daniel P., Moran, James M., Oyama, Tomoaki, Plambeck, Richard, Primiani, Rurik, Rogers, Alan E. E., Smythe, Daniel L., SooHoo, Jason, Strittmatter, Peter, Tilanus, Remo P. J., Titus, Michael, Weintroub, Jonathan, Wright, Melvyn, Woody, David, Young, Ken H., Ziurys, Lucy M.
Publikováno v:
Astrophys.J.727:L36,2011
Sagittarius A*, the ~4 x 10^6 solar mass black hole candidate at the Galactic Center, can be studied on Schwarzschild radius scales with (sub)millimeter wavelength Very Long Baseline Interferometry (VLBI). We report on 1.3 mm wavelength observations
Externí odkaz:
http://arxiv.org/abs/1011.2472
Autor:
Doeleman, Sheperd, Agol, Eric, Backer, Don, Baganoff, Fred, Bower, Geoffrey C., Broderick, Avery, Fabian, Andrew, Fish, Vincent, Gammie, Charles, Ho, Paul, Honma, Mareki, Krichbaum, Thomas, Loeb, Avi, Marrone, Dan, Reid, Mark, Rogers, Alan E. E., Shapiro, Irwin, Strittmatter, Peter, Tilanus, Remo, Weintroub, Jonathan, Whitney, Alan, Wright, Melvyn, Ziurys, Lucy
A long standing goal in astrophysics is to directly observe the immediate environment of a black hole with angular resolution comparable to the event horizon. Realizing this goal would open a new window on the study of General Relativity in the stron
Externí odkaz:
http://arxiv.org/abs/0906.3899
Autor:
Bloom, Joshua S., Prochaska, J. Xavier, Lee, William, González, J. Jesús, Ramírez-Ruiz, Enrico, Bolte, Michael, Franco, José, Guichard, José, Carramiñana, Alberto, Strittmatter, Peter, Avila-Reese, Vladimir, Bernstein, Rebecca, Bigelow, Bruce, Brodwin, Mark, Burgasser, Adam, Butler, Nat, Chávez, Miguel, Cobb, Bethany, Cook, Kem, Cruz-González, Irene, de Diego, José Antonio, Farah, Alejandro, Georgiev, Leonid, Girard, Julien, Hernández-Toledo, Hector, Jiménez-Bailón, Elena, Krongold, Yair, Mayya, Divakara, Meza, Juan, Miyaji, Takamitsu, Mújica, Raúl, Nugent, Peter, Porras, Alicia, Poznanski, Dovi, Raga, Alejandro, Richer, Michael, Rodríguez, Lino, Rosa, Daniel, Stanford, Adam, Szentgyorgyi, Andrew, Tenorio-Tagle, Guillermo, Thomas, Rollin, Valenzuela, Octavio, Watson, Alan M., Wehinger, Peter
We are proposing to conduct a multicolor, synoptic infrared (IR) imaging survey of the Northern sky with a new, dedicated 6.5-meter telescope at San Pedro M\'artir (SPM) Observatory. This initiative is being developed in partnership with astronomy in
Externí odkaz:
http://arxiv.org/abs/0905.1965
Autor:
Doeleman, Sheperd, Weintroub, Jonathan, Rogers, Alan E. E., Plambeck, Richard, Freund, Robert, Tilanus, Remo P. J., Friberg, Per, Ziurys, Lucy M., Moran, James M., Corey, Brian, Young, Ken H., Smythe, Daniel L., Titus, Michael, Marrone, Daniel P., Cappallo, Roger J., Bock, Douglas C. J., Bower, Geoffrey C., Chamberlin, Richard, Davis, Gary R., Krichbaum, Thomas P., Lamb, James, Maness, Holly, Niell, Arthur E., Roy, Alan, Strittmatter, Peter, Werthimer, Daniel, Whitney, Alan R., Woody, David
Publikováno v:
Nature, vol 455, p 78, 2008
The cores of most galaxies are thought to harbour supermassive black holes, which power galactic nuclei by converting the gravitational energy of accreting matter into radiation (ref 1). Sagittarius A*, the compact source of radio, infrared and X-ray
Externí odkaz:
http://arxiv.org/abs/0809.2442
We report results of a project investigating the growth of super-massive black holes (BHs) by disk accretion. We find that the BH mass growth is quick enough to account for the inferred masses in the highest-redshift quasars, and the growth time is a
Externí odkaz:
http://arxiv.org/abs/astro-ph/0602009
We show that the rapid formation of super-massive black holes in quasars can indeed be understood in terms of major galaxy mergers followed by disk accretion. The necessary short disk evolution time can be achieved provided the disk viscosity is suff
Externí odkaz:
http://arxiv.org/abs/astro-ph/0401010
We propose a generalized accretion disk viscosity prescription based on hydrodynamically driven turbulence at the critical effective Reynolds number. This approach is consistent with recent re-analysis by Richard & Zahn (1999) of experimental results
Externí odkaz:
http://arxiv.org/abs/astro-ph/0004076