An over-massive black hole in the compact lenticular galaxy NGC 1277

  title={An over-massive black hole in the compact lenticular galaxy NGC 1277},
  author={Remco van den Bosch and Karl Gebhardt and Kayhan G{\"u}ltekin and Glenn van de Ven and Arjen van der Wel and Jonelle L. Walsh},
Most massive galaxies have supermassive black holes at their centres, and the masses of the black holes are believed to correlate with properties of the host-galaxy bulge component. Several explanations have been proposed for the existence of these locally established empirical relationships, including the non-causal, statistical process of galaxy–galaxy merging, direct feedback between the black hole and its host galaxy, and galaxy–galaxy merging and the subsequent violent relaxation and… 
Depleted Galaxy Cores and Dynamical Black Hole Masses
Shallow cores in bright, massive galaxies are commonly thought to be the result of scouring of stars by mergers of binary supermassive black holes. Past investigations have suggested correlations
Ultramassive black hole feedback in compact galaxies
Recent observations confirm the existence of ultra-massive black holes (UMBH) in the nuclei of compact galaxies, with physical properties similar to NGC 1277. The nature of these objects poses a new
As early as 10 Gyr ago, galaxies with more than 1011 M ☉ of stars already existed. While most of these massive galaxies must have subsequently transformed through on-going star formation and mergers
The Black Hole in the Compact, High-dispersion Galaxy NGC 1271
Located in the Perseus cluster, NGC 1271 is an early-type galaxy with a small effective radius of 2.2 kpc and a large stellar velocity dispersion of 276 km/s for its K-band luminosity of 8.9x10^{10}
A supermassive black hole in an ultra-compact dwarf galaxy
Adaptive optics kinematic data of the ultra-compact dwarf galaxy M60-UCD1 that show a central velocity dispersion peak exceeding 100 kilometres per second and modest rotation are reported, implying a large population of previously unrecognized supermassive black holes in other ultra-Compact dwarf galaxies.
Although supermassive black holes (SMBHs) correlate well with their host galaxies, there is an emerging view that outliers exist. Henize 2-10, NGC 4889, and NGC 1277 are examples of SMBHs at least an
Hunting for Supermassive Black Holes in Nearby Galaxies with the Hobby-Eberly Telescope
We have conducted an optical long-slit spectroscopic survey of 1022 galaxies using the 10m Hobby-Eberly Telescope (HET) at McDonald Observatory. The main goal of the HET Massive Galaxy Survey
Rapidly growing black holes and host galaxies in the distant Universe from the Herschel Radio Galaxy Evolution Project
We present results from a comprehensive survey of 70 radio galaxies at redshifts 1 10(12) L-circle dot) or hyper-luminous (L-tot(IR) > 10(13) L-circle dot) infrared galaxies. We fit the infrared SEDs
A single population of red globular clusters around the massive compact galaxy NGC 1277
It is argued that the colour distribution of the cluster system of NGC 1277 indicates that the galaxy has undergone little (if any) mass accretion after its initial collapse, and simulations of possible merger histories are used to show that the stellar mass due to accretion is probably at most ten per cent of the total stellar mass of the galaxy.
A black hole mass determination for the compact galaxy Mrk 1216
Mrk 1216 is a nearby, early-type galaxy with a small effective radius of 2.8 kpc and a large stellar velocity dispersion of 308 km/s for its K-band luminosity of 1.4x10^11 L_sun. Using integral-field


An actively accreting massive black hole in the dwarf starburst galaxy Henize 2-10
It is confirmed that nearby star-forming dwarf galaxies can indeed form massive black holes, and that by implication so can their primordial counterparts, and the lack of a substantial spheroidal component in Henize 2-10 indicates that supermassive black-hole growth may precede the build-up of galaxy spheroids.
Two ten-billion-solar-mass black holes at the centres of giant elliptical galaxies
NGC 3842, the brightest galaxy in a cluster at a distance from Earth of 98 megaparsecs, has a central black hole with a mass of 9.7 billion solar masses, and that a black hole of comparable or greater mass is present in NGC 4889, the bright galaxy in the Coma cluster.
The Demography of massive dark objects in galaxy centers
We construct dynamical models for a sample of 36 nearby galaxies with Hubble Space Telescope (HST) photometry and ground-based kinematics. The models assume that each galaxy is axisymmetric, with a
Do black hole masses scale with classical bulge luminosities only? The case of the two composite pseudo-bulge galaxies NGC 3368 and NGC 3489
It is now well established that all galaxies with a massive bulge component harbour a central supermassive black hole (SMBH). The mass of the SMBH correlates with bulge properties such as the bulge
We show that the M BH-M bulge scaling relations observed from the local to the high-z universe can be largely or even entirely explained by a non-causal origin, i.e., they do not imply the need for
The Many lives of AGN: Cooling flows, black holes and the luminosities and colours of galaxies
We simulate the growth of galaxies and their central supermassive black holes by implementing a suite of semi-analytic models on the output of the Millennium Run, a very large simulation of the
A semi-analytic model for the co-evolution of galaxies, black holes and active galactic nuclei
We present a new semi-analytic model that self-consistently traces the growth of supermassive black holes (BH) and their host galaxies within the context of the Lambda cold dark matter (� CDM)
The many lives of active galactic nuclei: cooling flows, black holes and the luminosities and colour
We simulate the growth of galaxies and their central supermassive black holes by implementing a suite of semi-analytic models on the output of the Millennium Run, a very large simulation of the
A high stellar velocity dispersion for a compact massive galaxy at redshift z = 2.186
The velocity dispersion is very high at  km s-1, consistent with the mass and compactness of the galaxy inferred from photometric data, which would indicate significant recent structural and dynamical evolution of massive galaxies over the past 10 Gyr.
The mass density of massive black holes observed locally is consistent with the hard X-ray background provided that most of the radiation produced during their growth was absorbed by surrounding gas.