We present new accurate near-infrared (NIR) spheroid (bulge) structural parameters obtained by twodimensional image analysis for all galaxies with a direct black hole (BH) mass determination. As expected, NIR bulge luminosities Lbul and BH masses are tightly correlated, and if we consider only those galaxies with secure BH mass measurement and accurate Lbul (27 objects), the spread of MBH-Lbul ...

The tight correlation of galactic velocity distribution to both luminosity and black hole mass, the relation of halo parameters to luminous mass distribution can not be due to collapse dynamics. A baryonic big bang shell can solve galaxy formation problems by forming the supermassive black holes necessary to capture the initial blast wave in a coordinated pattern.

Black hole accretion and jet production are areas of intensive study in astrophysics. Recent work has found a relation between radio luminosity, X-ray luminosity, and black hole mass. With the assumption that radio and X-ray luminosity are suitable proxies for jet power and accretion power, respectively, a broad fundamental connection between accretion and jet production is implied. In an effor...

Using simple stellar population synthesis, we model the bulge stellar contribution in the optical spectrum of a narrow-line Seyfert 1 galaxy RE J1034+396. We find that its bulge stellar velocity dispersion is 67.7± 8 km s . The supermassive black hole (SMBH) mass is about (1−4)×106M⊙ if it follows the well-known MBH−σ∗ relation found in quiescent galaxies. We also derive the SMBH mass from the ...

At the present time, early-type brightest cluster galaxies in the SDSS MaxBCG and C4 catalogs have larger sizes than early-type galaxies of similar luminosity, whether these other objects are in the field, or are satellites in clusters. BCG sizes are also stronger functions of luminosity Re ∝ L than are the sizes of the bulk of the population; this remains true if one restricts attention to nar...

We use a sample of 115 galaxy clusters at 0.1 < z < 1.3 observed with Chandra ACIS-I to investigate the relation between luminosity and YX (the product of gas mass and temperature). The scatter in the relation is dominated by cluster cores, and a tight LX −YX relation (11% intrinsic scatter in LX) is recovered if sufficiently large core regions (0.15R500) are excluded. The intrinsic scatter is ...

I wish to point out several errors and an inconsistency in Harrison Brown's report, "Planetary systems associated with main-sequence stars" (1). He begins by extrapolating the Salpeter luminosity function, which is nearly linear over an interval of 12 magnitudes, down to planetary masses. He then assumes that stars and planets are formed independently in groups of random size distribution. He c...

We present the observed relation between ∆TSZ, the cosmic microwave background (CMB) temperature decrement due to the Sunyaev-Zeldovich (SZ) effect, and L, the X-ray luminosity of galaxy clusters. We discuss this relation in terms of the cluster properties, and show that the slope of the observed ∆TSZ−L relation is in agreement with both the L − Te relation based on numerical simulations and X-...

The huge size and uniformity of the Sloan Digital Sky Survey (SDSS) make possible an exacting test of current models of galaxy formation. We compare the predictions of the GALFORM semi-analytical galaxy formation model for the luminosities, morphologies, colours and scalelengths of local galaxies. GALFORM models the luminosity and size of the disc and bulge components of a galaxy, and so we can...