Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Aller, M. C."'
We report the detection of interstellar silicate dust in the z_abs=0.685 absorber along the sightline toward the gravitationally lensed blazar TXS 0218+357. Using Spitzer Space Telescope Infrared Spectrograph data we detect the 10 micron silicate abs
Externí odkaz:
http://arxiv.org/abs/1402.4509
Autor:
Aller, M. F., Hughes, P. A., Aller, H. D., Marscher, A. P., Jorstad, S. G., Hovatta, T., Aller, M. C.
We present centimeter-band total flux density and linear polarization light curves illustrating the signature of shocks during radio band outbursts associated in time with gamma-ray flares detected by the Fermi LAT. The general characteristics of the
Externí odkaz:
http://arxiv.org/abs/1110.6484
Autor:
Lusso, E., Comastri, A., Vignali, C., Zamorani, G., Treister, E., Sanders, D., Bolzonella, M., Bongiorno, A., Brusa, M., Civano, F., Gilli, R., Mainieri, V., Nair, P., Aller, M. C., Carollo, M., Koekemoer, A. M., Merloni, A., Trump, J. R.
We present a study of the multi-wavelength properties, from the mid-infrared to the hard X-rays, of a sample of 255 spectroscopically identified X-ray selected Type-2 AGN from the XMM-COSMOS survey. Most of them are obscured the X-ray absorbing colum
Externí odkaz:
http://arxiv.org/abs/1108.4925
Autor:
Cameron, E., Carollo, C. M., Oesch, P., Aller, M. C., Bschorr, T., Cerulo, P., Aussel, H., Capak, P., Floc'h, E. Le, Ilbert, O., Kneib, J. -P., Koekemoer, A., Leauthaud, A., Lilly, S. J., Massey, R., McCracken, H. J., Rhodes, J., Salvato, M., Sanders, D. B., Scoville, N., Sheth, K., Taniguchi, Y., Thompson, D.
We investigate the (large-scale) bar fraction in a mass-complete sample of M > 10^10.5 Msun disk galaxies at 0.2 < z < 0.6 in the COSMOS field. The fraction of barred disks strongly depends on mass, disk morphology, and specific star formation rate (
Externí odkaz:
http://arxiv.org/abs/1001.1736
Autor:
Oesch, P. A., Carollo, C. M., Feldmann, R., Hahn, O., Lilly, S. J., Sargent, M. T., Scarlata, C., Aller, M. C., Aussel, H., Bolzonella, M., Bschorr, T., Bundy, K., Capak, P., Ilbert, O., Kneib, J. -P., Koekemoer, A. M., Kovac, K., Leauthaud, A., Floc'h, E. Le, Massey, R., McCracken, H. J., Pozzetti, L., Renzini, A., Rhodes, J., Salvato, M., Sanders, D. B., Scoville, N., Sheth, K., Taniguchi, Y., Thompson, D.
We use ~8,600 >5e10 Msol COSMOS galaxies to study how the morphological mix of massive ellipticals, bulge-dominated disks, intermediate-bulge disks, bulge-less disks and irregular galaxies evolves from z=0.2 to z=1. The morphological evolution depend
Externí odkaz:
http://arxiv.org/abs/0911.1126
Autor:
Gultekin, Kayhan, Richstone, Douglas O., Gebhardt, Karl, Lauer, Tod R., Tremaine, Scott, Aller, M. C., Bender, Ralf, Dressler, Alan, Faber, S. M., Filippenko, Alexei V., Green, Richard, Ho, Luis C., Kormendy, John, Magorrian, John, Pinkney, Jason, Siopis, Christos
Publikováno v:
Astrophys.J.698:198-221,2009
We derive improved versions of the relations between supermassive black hole mass (M_BH) and host-galaxy bulge velocity dispersion (sigma) and luminosity (L) (the M-sigma and M-L relations), based on 49 M_BH measurements and 19 upper limits. Particul
Externí odkaz:
http://arxiv.org/abs/0903.4897
Autor:
Gultekin, Kayhan, Richstone, Douglas O., Gebhardt, Karl, Lauer, Tod R., Pinkney, Jason, Aller, M. C., Bender, Ralf, Dressler, Alan, Faber, S. M., Filippenko, Alexei V., Green, Richard, Ho, Luis C., Kormendy, John, Siopis, Christos
Publikováno v:
Astrophys.J.695:1577-1590,2009
We report five new measurements of central black hole masses based on STIS and WFPC2 observations with the Hubble Space Telescope and on axisymmetric, three-integral, Schwarzschild orbit-library kinematic models. We selected a sample of galaxies with
Externí odkaz:
http://arxiv.org/abs/0901.4162
Autor:
Siopis, Christos, Gebhardt, Karl, Lauer, Tod R., Kormendy, John, Pinkney, Jason, Richstone, Douglas, Faber, S. M., Tremaine, Scott, Aller, M. C., Bender, Ralf, Bower, Gary, Dressler, Alan, Filippenko, Alexei V., Green, Richard, Ho, Luis C., Magorrian, John
Publikováno v:
Astrophys.J.693:946-969,2009
We determine the mass of the black hole at the center of the spiral galaxy NGC 4258 by constructing axisymmetric dynamical models of the galaxy. These models are constrained by high spatial resolution imaging and long-slit spectroscopy of the nuclear
Externí odkaz:
http://arxiv.org/abs/0808.4001
Autor:
Aller, M. C., Richstone, D. O.
A variety of host galaxy (bulge) parameters are examined in order to determine their predictive power in ascertaining the masses of the supermassive black holes (SMBH) at the centers of the galaxies. Based on a sample of 23 nearby galaxies, comprised
Externí odkaz:
http://arxiv.org/abs/0705.1165
Autor:
Lauer, Tod R., Gebhardt, Karl, Faber, S. M., Richstone, Douglas, Tremaine, Scott, Kormendy, John, Aller, M. C., Bender, Ralf, Dressler, Alan, Filippenko, Alexei V., Green, Richard, Ho, Luis C.
Publikováno v:
Astrophys.J.664:226-256,2007
We combine the results from several HST investigations of the central structure of early-type galaxies to generate a large sample of parameterized surface photometry. The studies included were those that used the "Nuker law" to characterize the inner
Externí odkaz:
http://arxiv.org/abs/astro-ph/0609762