Zobrazeno 31 - 40
of 1 641
pro vyhledávání: '"Vestergaard, M."'
Autor:
Mathur, S., Denney, K. D., Gupta, A., Vestergaard, M., De Rosa, G., Krongold, Y., Nicastro, F., Collinson, J., Goad, M., Korista, K., Pogge, R. W., Peterson, B. M.
Mrk 590 was originally classified as a Seyfert 1 galaxy, but then it underwent dramatic changes: the nuclear luminosity dropped by over two orders of magnitude and the broad emission lines all but disappeared from the optical spectrum. Here we presen
Externí odkaz:
http://arxiv.org/abs/1810.06616
Autor:
De Rosa, G., Fausnaugh, M. M., Grier, C. J., Peterson, B. M., Denney, K. D., Horne, Keith, Bentz, M. C., Ciroi, S., Bonta`, E. Dalla, Joner, M. D., Kaspi, S., Kochanek, C. S., Pogge, R. W., Sergeev, S. G., Vestergaard, M., Adams, S. M., Antognini, J., Salvo, C. Araya, Armstrong, E., Bae, J., Barth, A. J., Beatty, T. G., Bhattacharjee, A., Borman, G. A., Boroson, T. A., Bottorff, M. C., Brown, J. E., Brown, J. S., Brotherton, M. S., Coker, C. T., Clanton, C., Cracco, V., Crawford, S. M., Croxall, K. V., Eftekharzadeh, S., Eracleous, M., Fiorenza, S. L., Frassati, A., Hawkins, K., Henderson, C. B., Holoien, T. W. -S., Hutchison, T., Kellar, J., Kilerci-Eser, E., Kim, S., King, A. L., La Mura, G., Laney, C. D., Li, M., Lochhaas, C., Ma, Z., MacInnis, F., Manne-Nicholas, E. R., Mason, M., McGraw, S. M., Mogren, K., Montouri, C., Moody, J. W., Mosquera, A. M., Mudd, D., Musso, R., Nazarov, S. V., Nguyen, M. L., Ochner, P., Okhmat, D. N., Onken, C. A., Ou-Yang, B., Pancoast, A., Pei, L., Penny, M., Poleski, R., Portaluri, E., Prieto, J. -L., Price-Whelan, A. M., Pulatova, N. G., Rafter, S., Roettenbacher, R. M., Romero-Colmenero, E., Runnoe, J., Schimoia, J. S., Shappee, B. J., Sherf, N., Simonian, G. V., Siviero, A., Skowron, D. M., Skowron, J., Somers, G., Spencer, M., Starkey, D. A., Stevens, D. J., Stoll, R., Tamajo, E., Tayar, J., van Saders, J. L., Valenti, S., Villanueva, Jr., S., Villforth, C., Weiss, Y., Winkler, H., Zastrow, J., Zhu, W., Zu, Y.
We present the first results from a reverberation-mapping campaign undertaken during the first half of 2012, with additional data on one AGN (NGC 3227) from a 2014 campaign. Our main goals are (1) to determine the black hole masses from continuum-Hbe
Externí odkaz:
http://arxiv.org/abs/1807.04784
Autor:
Fischer, Travis C., Kraemer, S. B., Schmitt, H. R., Micchi, L. F. Longo, Crenshaw, D. M., Revalski, M., Vestergaard, M., Elvis, M., Gaskell, C. M., Hamann, F., Ho, L. C., Hutchings, J., Mushotsky, R., Netzer, H., Storchi-Bergmann, T., Straughn, A., Turner, T. J., Ward, M. J.
We present a Hubble Space Telescope (HST) survey of extended [O III] {\lambda}5007 emission for a sample of 12 nearby (z < 0.12), luminous Type 2 quasars (QSO2s), which we use to measure the extent and kinematics of their AGN-ionized gas. We find the
Externí odkaz:
http://arxiv.org/abs/1802.06184
Autor:
McHardy, I M, Connolly, S D, Cackett, K Horne E M, Gelbord, J, Peterson, B M, Pahari, M, Gehrels, N, Edelson, R, Goad, M, Lira, P, Arevalo, P, Baldi, R D, Brandt, N, Breedt, E, Chand, H, Dewangan, G, Done, C, Elvis, M, Emmanoulopoulos, D, Fausnaugh, M M, Kaspi, S, Kochanek, C S, Korista, K, Papadakis, I E, Rao, A R, Uttley, P, Vestergaard, M, Ward, M J
We report the results of intensive X-ray, UV and optical monitoring of the Seyfert 1 galaxy NGC 4593 with Swift. There is no intrinsic flux-related spectral change in the the variable components in any band with small apparent variations due only to
Externí odkaz:
http://arxiv.org/abs/1712.04852
Autor:
Christensen, L., Vergani, S. D., Schulze, S., Annau, N., Selsing, J., Fynbo, J. P. U., Postigo, A. de Ugarte, Cañameras, R., Lopez, S., Passi, D., Cortés-Zuleta, P., Ellison, S. L., D'Odorico, V., Becker, G., Berg, T. A. M., Cano, Z., Covino, S., Cupani, G., D'Elia, V., Goldoni, P., Gomboc, A., Hammer, F., Heintz, K. E., Jakobsson, P., Japelj, J., Kaper, L., Malesani, D., Møller, P., Petitjean, P., Pugliese, V., Sánchez-Ramírez, R., Tanvir, N. R., Thöne, C. C., Vestergaard, M., Wiersema, K., Worseck, G.
Publikováno v:
A&A 608, A84 (2017)
Previous studies have shown that the incidence rate of intervening strong MgII absorbers towards GRBs were a factor of 2 - 4 higher than towards quasars. Exploring the similar sized and uniformly selected legacy data sets XQ-100 and XSGRB, each consi
Externí odkaz:
http://arxiv.org/abs/1709.01084
Autor:
Mathur, S., Gupta, A., Page, K., Pogge, R. W., Krongold, Y., Goad, M. R., Adams, S. M., Anderson, M. D., Arevalo, P., Barth, A. J., Bazhaw, C., Beatty, T. G., Bentz, M. C., Bigley, A., Bisogni, S., Borman, G. A., Boroson, T. A., Bottorff, M. C., Brandt, W. N., Breeveld, A. A., Brown, J. E., Brown, J. S., Cackett, E. M., Canalizo, G., Carini, M. T., Clubb, K. I., Comerford, J. M., Coker, C. T., Corsini, E. M., Crenshaw, D. M., Croft, S., Croxall, K. V., Bonta, E. Dalla, Deason, A. J., Denney, K. D., De Lorenzo-Caceres, A., De Rosa, G., Dietrich, M., Edelson, R., Ely, J., Eracleous, M., Evans, P. A., Fausnaugh, M. M., Ferland, G. J., Filippenko, A. V., Flatland, K., Fox, O. D., Gates, E. L., Gehrels, N., Geier, S., Gelbord, J. M., Gorjian, V., Greene, J. E., Grier, C. J., Grupe, D., Hall, P. B., Henderson, C. B., Hicks, S., Holmbeck, E., Holoien, T. W. -S., Horenstein, D., Horne, Keith, Hutchison, T., Im, M., Jensen, J. J., Johnson, C. A., Joner, M. D., Jones, J., Kaastra, J., Kaspi, S., Kelly, B. C., Kelly, P. L., Kennea, J. A., Kim, M., Kim, S., Kim, S. C., King, A., Klimanov, S. A., Kochanek, C. S., Korista, K. T., Kriss, G. A., Lau, M. W., Lee, J. C., Leonard, D. C., Li, M., Lira, P., Ma, Z., MacInnis, F., Manne-Nicholas, E. R., Malkan, M. A., Mauerhan, J. C., McGurk, R., McHardy, I. M., Montouri, C., Morelli, L., Mosquera, A., Mudd, D., Muller-Sanchez, F., Musso, R., Nazarov, S. V., Netzer, H., Nguyen, M. L., Norris, R. P., Nousek, J. A., Ochner, P., Okhmat, D. N., Ou-Yang, B., Pancoast, A., Papadakis, I., Parks, J. R., Pei, L., Peterson, B. M., Pizzella, A., Poleski, R., Pott, J. -U., Rafter, S. E., Rix, H. -W., Runnoe, J., Saylor, D. A., Schimoia, J. S., Schnülle, K., Sergeev, S. G., Shappee, B. J., Shivvers, I., Siegel, M., Simonian, G. V., Siviero, A., Skielboe, A., Somers, G., Spencer, M., Starkey, D., Stevens, D. J., Sung, H. -I., Tayar, J., Tejos, N., Turner, C. S., Uttley, P., Van Saders, J., Vestergaard, M., Vican, L., VillanuevaJr., S., Villforth, C., Weiss, Y., Woo, J. -H., Yan, H., Young, S., Yuk, H., Zheng, W., Zhu, W., Zu, Y.
During the Space Telescope and Optical Reverberation Mapping Project (STORM) observations of NGC 5548, the continuum and emission-line variability became de-correlated during the second half of the 6-month long observing campaign. Here we present Swi
Externí odkaz:
http://arxiv.org/abs/1704.06345
Autor:
Pei, L., Fausnaugh, M. M., Barth, A. J., Peterson, B. M., Bentz, M. C., De Rosa, G., Denney, K. D., Goad, M. R., Kochanek, C. S., Korista, K. T., Kriss, G. A., Pogge, R. W., Bennert, V. N., Brotherton, M., Clubb, K. I., Bontà, E. Dalla, Filippenko, A. V., Greene, J. E., Grier, C. J., Vestergaard, M., Zheng, W., Adams, Scott M., Beatty, Thomas G., Bigley, A., Brown, Jacob E., Brown, Jonathan S., Canalizo, G., Comerford, J. M., Coker, Carl T., Corsini, E. M., Croft, S., Croxall, K. V., Deason, A. J., Eracleous, Michael, Fox, O. D., Gates, E. L., Henderson, C. B., Holmbeck, E., Holoien, T. W. -S., Jensen, J. J., Johnson, C. A., Kelly, P. L., Kim, S., King, A., Lau, M. W., Li, Miao, Lochhaas, Cassandra, Ma, Zhiyuan, Manne-Nicholas, E. R., Mauerhan, J. C., Malkan, M. A., McGurk, R., Morelli, L., Mosquera, Ana, Mudd, Dale, Sanchez, F. Muller, Nguyen, M. L., Ochner, P., Ou-Yang, B., Pancoast, A., Penny, Matthew T., Pizzella, A., Poleski, Radosław, Runnoe, Jessie, Scott, B., Schimoia, Jaderson S., Shappee, B. J., Shivvers, I., Simonian, Gregory V., Siviero, A., Somers, Garrett, Stevens, Daniel J., Strauss, M. A., Tayar, Jamie, Tejos, N., Treu, T., Van Saders, J., Vican, L., Villanueva Jr., S., Yuk, H., Zakamska, N. L., Zhu, W., Anderson, M. D., Arévalo, P., Bazhaw, C., Bisogni, S., Borman, G. A., Bottorff, M. C., Brandt, W. N., Breeveld, A. A., Cackett, E. M., Carini, M. T., Crenshaw, D. M., De Lorenzo-Cáceres, A., Dietrich, M., Edelson, R., Efimova, N. V., Ely, J., Evans, P. A., Ferland, G. J., Flatland, K., Gehrels, N., Geier, S., Gelbord, J. M., Grupe, D., Gupta, A., Hall, P. B., Hicks, S., Horenstein, D., Horne, Keith, Hutchison, T., Im, M., Joner, M. D., Jones, J., Kaastra, J., Kaspi, S., Kelly, B. C., Kennea, J. A., Kim, M., Kim, S. C., Klimanov, S. A., Lee, J. C., Leonard, D. C., Lira, P., MacInnis, F., Mathur, S., McHardy, I. M., Montouri, C., Musso, R., Nazarov, S. V., Netzer, H., Norris, R. P., Nousek, J. A., Okhmat, D. N., Papadakis, I., Parks, J. R., Pott, J. -U., Rafter, S. E., Rix, H. -W., Saylor, D. A., Schnülle, K., Sergeev, S. G., Siegel, M., Skielboe, A., Spencer, M., Starkey, D., Sung, H. -I., Teems, K. G., Turner, C. S., Uttley, P., Villforth, C., Weiss, Y., Woo, J. -H., Yan, H., Young, S., Zu, Y.
We present the results of an optical spectroscopic monitoring program targeting NGC 5548 as part of a larger multi-wavelength reverberation mapping campaign. The campaign spanned six months and achieved an almost daily cadence with observations from
Externí odkaz:
http://arxiv.org/abs/1702.01177
Space Telescope and Optical Reverberation Mapping Project VI: reverberating Disk Models for NGC 5548
Autor:
Starkey, D., Horne, Keith, Fausnaugh, M. M., Peterson, B. M., Bentz, M. C., Kochanek, C. S., Denney, K. D., Edelson, R., Goad, M. R., De Rosa, G., Anderson, M. D., Arevalo, P., Barth, A. J., Bazhaw, C., Borman, G. A., Boroson, T. A., Bottorff, M. C., Brandt, W. N., Breeveld, A. A., Cackett, E. M., Carini, M. T., Croxall, K. V., Crenshaw, D. M., Bonta, E. Dalla, De Lorenzo-Caceres, A., Dietrich, M., Efimova, N. V., Ely, J., Evans, P. A., Filippenko, A. V., Flatland, K., Gehrels, N., Geier, S., Gelbord, J. M., Gonzalez, L., Gorjian, V., Grier, C. J., Grupe, D., Hall, P. B., Hicks, S., Horenstein, D., Hutchison, T., Im, M., Jensen, J. J., Joner, M. D., Jones, J., Kaastra, J., Kaspi, S., Kelly, B. C., Kennea, J. A., Kim, S. C., Kim, M., Klimanov, S. A., Korista, K. T., Kriss, G. A., Lee, J. C., Leonard, D. C., Lira, P., MacInnis, F., Manne-Nicholas, E. R., Mathur, S., McHardy, I. M., Montouri, C., Musso, R., Nazarov, S. V., Norris, R. P., Nousek, J. A., Okhmat, D. N., Pancoast, A., Parks, J. R., Pei, L., Pogge, R. W., Pott, J. -U., Rafter, S. E., Rix, H. W., Saylor, D. A., Schimoia, J. S., Schnulle, K., Sergeev, S. G., Siegel, M. H., Spencer, M., Sung, H. -I., Teems, K. G., Turner, C. S., Uttley, P., Vestergaard, M., Villforth, C., Weiss, Y., Woo, J. -H., Yan, H., Young, S., Zheng, W., Zu, Y.
We conduct a multiwavelength continuum variability study of the Seyfert 1 galaxy NGC 5548 to investigate the temperature structure of its accretion disk. The 19 overlapping continuum light curves (1158 to 9157 angstroms) combine simultaneous HST , Sw
Externí odkaz:
http://arxiv.org/abs/1611.06051
Autor:
Marconi, A., Di Marcantonio, P., D'Odorico, V., Cristiani, S., Maiolino, R., Oliva, E., Origlia, L., Riva, M., Valenziano, L., Zerbi, F. M., Abreu, M., Adibekyan, V., Prieto, C. Allende, Amado, P. J., Benz, W., Boisse, I., Bonfils, X., Bouchy, F., Buchhave, L., Buscher, D., Cabral, A., Martins, B. L. Canto, Chiavassa, A., Coelho, J., Christensen, L. B., Delgado-Mena, E., De Medeiros, J. R., Di Varano, I., Figueira, P., Fisher, M., Fynbo, J. P. U., Glasse, A. C. H., Haehnelt, M., Haniff, C., Hansen, C. J., Hatzes, A., Huke, P., Korn, A. J., Leao, I. C., Liske, J., Lovis, C., Maslowski, P., Matute, I., McCracken, R. A., Martins, C. J. A. P., Monteiro, M. J. P. F. G., Morris, S., Morris, T., Nicklas, H., Niedzielski, A., Nunes, N. J., Palle, E., Parr-Burman, P., Parro, V., Parry, I., Pepe, F., Piskunov, N., Queloz, D., Quirrenbach, A., Lopez, R. Rebolo, Reiners, A., Reid, D. T., Santos, N., Seifert, W., Sousa, S., Stempels, H. C., Strassmeier, K., Sun, X., Udry, S., Vanzi, L., Vestergaard, M., Weber, M., Zackrisson, E.
The first generation of E-ELT instruments will include an optical-infrared High Resolution Spectrograph, conventionally indicated as EELT-HIRES, which will be capable of providing unique breakthroughs in the fields of exoplanets, star and planet form
Externí odkaz:
http://arxiv.org/abs/1609.00497
Autor:
Krogager, J. -K., Fynbo, J. P. U., Heintz, K. E., Geier, S., Ledoux, C., Møller, P., Noterdaeme, P., Venemans, B. P., Vestergaard, M.
Publikováno v:
ApJ, 832, 49 (2016)
We present the results of a new spectroscopic survey for dusty intervening absorption systems, particularly damped Ly$\alpha$ absorbers (DLAs), towards reddened quasars. The candidate quasars are selected from mid-infrared photometry from the Wide-fi
Externí odkaz:
http://arxiv.org/abs/1608.08404