MAGIC search for VHE $\gamma$-ray emission from AE Aquarii in a multiwavelength context

Autor: Aleksić, J., Ansoldi, S., Antonelli, L. A., Antoranz, P., Babic, A., Bangale, P., Barrio, J. A., González, J. Becerra, Bednarek, W., Bernardini, E., Biasuzzi, B., Biland, A., Blanch, O., Bonnefoy, S., Bonnoli, G., Borracci, F., Bretz, T., Carmona, E., Carosi, A., Colin, P., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., Da Vela, P., Dazzi, F., De Angelis, A., De Caneva, G., De Lotto, B., Wilhelmi, E. de Oña, Mendez, C. Delgado, Doert, M., Prester, D. Dominis, Dorner, D., Doro, M., Einecke, S., Eisenacher, D., Elsaesser, D., Fonseca, M. V., Font, L., Frantzen, K., Fruck, C., Galindo, D., López, R. J. García, Garczarczyk, M., Terrats, D. Garrido, Gaug, M., Godinović, N., Muñoz, A. González, Gozzini, S. R., Hadasch, D., Hanabata, Y., Hayashida, M., Herrera, J., Hildebrand, D., Hose, J., Hrupec, D., Idec, W., Kadenius, V., Kellermann, H., Kodani, K., Konno, Y., Krause, J., Kubo, H., Kushida, J., La Barbera, A., Lelas, D., Lewandowska, N., Lindfors, E., Lombardi, S., López, M., López-Coto, R., López-Oramas, A., Lorenz, E., Lozano, I., Makariev, M., Mallot, K., Maneva, G., Mankuzhiyil, N., Mannheim, K., Maraschi, L., Marcote, B., Mariotti, M., Martínez, M., Mazin, D., Menzel, U., Miranda, J. M., Mirzoyan, R., Moralejo, A., Munar-Adrover, P., Nakajima, D., Niedzwiecki, A., Nilsson, K., Nishijima, K., Noda, K., Nowak, N., Orito, R., Overkemping, A., Paiano, S., Palatiello, M., Paneque, D., Paoletti, R., Paredes, J. M., Paredes-Fortuny, X., Persic, M., Moroni, P. G. Prada, Prandini, E., Preziuso, S., Puljak, I., Reinthal, R., Rhode, W., Ribó, M., Rico, J., Garcia, J. Rodriguez, Rügamer, S., Saggion, A., Saito, T., Saito, K., Satalecka, K., Scalzotto, V., Scapin, V., Schultz, C., Schweizer, T., Sillanpää, A., Sitarek, J., Snidaric, I., Sobczynska, D., Spanier, F., Stamatescu, V., Stamerra, A., Steinbring, T., Storz, J., Strzys, M., Takalo, L., Takami, H., Tavecchio, F., Temnikov, P., Terzić, T., Tescaro, D., Teshima, M., Thaele, J., Tibolla, O., Torres, D. F., Toyama, T., Treves, A., Uellenbeck, M., Vogler, P., Wagner, R. M., Zanin, R., Bogosavljevic, M., Ioannou, Z., Mauche, C. W., Palaiologou, E. V., Pérez-Torres, M. A., Tuominen, T.

Publikováno v: A&A 568, A109 (2014)

It has been claimed that the nova-like cataclysmic variable (CV) AE Aquarii (AE Aqr) is a very-high-energy (VHE, $E>$100 GeV) source both on observational and theoretical grounds. We aim to search for VHE gamma-ray emission from AE Aqr during differe

Externí odkaz: http://arxiv.org/abs/1407.3707

Search for TeV $\gamma$-ray emission from AE Aqr coincident with high optical and X-ray states with the MAGIC telescopes

Autor: Lopez-Coto, R., Bigas, O. Blanch, Cortina, J., Hadasch, D., Takalo, L., Torres, D., Bogosavljevic, M., Ioannou, Z., Mauche, C. W., Palaiologou, E. V., Perez-Torres, M. A., Tuominen, T.

We report on observations of the nova-like cataclysmic variable AE Aqr performed by MAGIC. The observations were part of a quasi-simultaneous multi-wavelength campaign carried out between 2012 May and June covering the optical, UV, X-ray and gamma-ra

Externí odkaz: http://arxiv.org/abs/1309.2503

Excess AGN Activity in the z=2.30 Protocluster in HS 1700+64

Autor: Digby-North, J. A., Nandra, K., Laird, E. S., Steidel, C. C., Georgakakis, A., Bogosavljević, M., Erb, D. K., Shapley, A. E., Reddy, N. A., Aird, J.

We present the results of spectroscopic, narrow-band and X-ray observations of a z=2.30 protocluster in the field of the QSO HS 1700+643. Using a sample of BX/MD galaxies, which are selected to be at z~2.2-2.7 by their rest-frame ultraviolet colours,

Externí odkaz: http://arxiv.org/abs/1005.1833

Discovery of an Optically-Faint Quasar at z=5.70 and Implications for the Faint End of the Quasar Luminosity Function

Autor: Mahabal, A., Stern, D., Bogosavljevic, M., Djorgovski, S. G., Thompson, D.

Publikováno v: Astrophys.J.634:L9-L12,2005

We present observations of an optically-faint quasar, RD J114816.2+525339, discovered from deep multi-color observations of the field around the z = 6.42 quasar SDSS J1148+5251. The two quasars have a projected separation of 109 arcsec and both are o

Externí odkaz: http://arxiv.org/abs/astro-ph/0510471

Time Domain Explorations With Digital Sky Surveys

Autor: Mahabal, A. A., Djorgovski, S. G., Graham, M. J., Kollipara, P., Granett, B., Krause, E., Williams, R., Bogosavljevic, M., Baltay, C., Rabinowitz, D., Bauer, A., Andrews, P., Ellman, N., Duffau, S., Jerke, J., Rengstorf, A., Brunner, R., Musser, J., Mufson, S., Gebhard, M.

One of the new frontiers of astronomical research is the exploration of time variability on the sky at different wavelengths and flux levels. We have carried out a pilot project using DPOSS data to study strong variables and transients, and are now e

Externí odkaz: http://arxiv.org/abs/astro-ph/0412164