Zobrazeno 1 - 10
of 171
pro vyhledávání: '"Zou, Z. L."'
The fundamental plane of spiral galaxies was searched from observational data, which can be approximately represented in observational parameters by $ L \propto V^2 R $, where $L$, $R$, and $V$ are the luminosity, the linear size of galactic disk, an
Externí odkaz:
http://arxiv.org/abs/astro-ph/0107586
We perform photometric measurements on a large HST snapshot imaging survey sample of 97 ultraluminous infrared galaxies (ULIRGs). We select putative nuclei from bright clumps in all the sample targets, mainly based on a quantitative criterion of I-ba
Externí odkaz:
http://arxiv.org/abs/astro-ph/0104296
We study the surface photometry for 13 single-nucleus ultraluminous IRAS galaxies (ULIRGs), selected from a parent sample of 58 galaxies obtained in a Hubble Space Telescope snapshot survey. We find that these galaxies can be classified into three cl
Externí odkaz:
http://arxiv.org/abs/astro-ph/9902339
We study optical and X-ray properties of the ultraluminous IRAS galaxy 10026+4347. This galaxy is a narrow-line QSO with very strong FeII emission. Three optical spectra were taken over two years. The full widths at half maximum (FWHMs) of the emissi
Externí odkaz:
http://arxiv.org/abs/astro-ph/9811171
Autor:
Peterson, B. M., Barth, A. J., Berlind, P., Bertram, R., Bischoff, K., Bochkarev, N. G., Burenkov, A. N., Cheng, F. -Z., Dietrich, M., Filippenko, A. V., Giannuzzo, E., Ho, L. C., Huchra, J. P., Hunley, J., Kaspi, S., Kollatschny, W., Leonard, D. C., Malkov, Yu. F., Matheson, T., Mignoli, M., Nelson, B., Papaderos, P., Peters, J., Pogge, R. W., Pronik, V. I., Sergeev, S. G., Sergeeva, E. A., Shapovalova, A. I., Stirpe, G. M., Tokarz, S., Wagner, R. M., Wanders, I., Wei, J. -Y., Wilkes, B. J., Wu, H., Xue, S. -J., Zou, Z. -L.
We present the results of three years of ground-based observations of the Seyfert 1 galaxy NGC 5548, which combined with previously reported data, yield optical continuum and broad-line H-beta light curves for a total of eight years. The light curves
Externí odkaz:
http://arxiv.org/abs/astro-ph/9808236
Spectroscopic observations of a sample of 73 very luminous IRAS galaxies (log(LIR/Lsun)>=11.5 for H0=50km s^{-1} Mpc^{-1},q0=0.5) from the 2Jy red- shift survey catalogue were carried out using the 2.16m telescope at the Beijing Astronomical Observat
Externí odkaz:
http://arxiv.org/abs/astro-ph/9804068
We report the discovery of the brightest X-ray source hosted by a faint (M_B=-16) dwarf galaxy in the immediate vicinity of the ultraluminous IRAS merging galaxy Mrk 273. The dwarf galaxy, 1.3 arcmin away from Mrk 273, is at the tip of a faint northe
Externí odkaz:
http://arxiv.org/abs/astro-ph/9801238
This paper presents the results of spectral observations for the largest complete sample of very luminous IRAS galaxies obtained to date. The sample consists of those 73 objects for which log (L_IR/L_sun) => 11.5 (H0=50 km/s/Mpc, q0=0.5) and mag =< 1
Externí odkaz:
http://arxiv.org/abs/astro-ph/9711037
The deflection angle $\Delta\phi$ of light rays by the gravitational field of a spherical system $M(r)$ is calculated using the MOdified Newtonian Dynamics (MOND). It is shown that $\Delta\phi$ with an impact parameter $r_0$ can be expressed by the m
Externí odkaz:
http://arxiv.org/abs/astro-ph/9406051
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