... Galaxies in the Local Volume . ... Accurate distances are now available for the majority of these nearby galaxies, allowing us to visualise the Local Volume in 3D, study the local Hubble flow and its dispersion, the (baryonic) Tully-Fisher relation, the local star formation density, etc. Individual galaxies in the Local Volume can be studied in amazing detail across a large range of wavelengths (some stunning examples are compiled in the Multiwavelength Astronomy pages). ...

... According to the most popular cosmological paradigm, the greater part of the galaxy mass is accumulated in the dark matter halo. ... The polar ring galaxies (PRGs) reveal external rings or disks of gas, dust and stars rotating in a plane roughly perpendicular to the disk of the central galaxy. ... The shape of the dark halo in the model was chosen so as to achieve the best fit to the observed rotation of both galaxies themselves and their polar rings. ... The SPRC-7 galaxy. ...

. SN 1996X . NAME . NGC 5061 . DISCOVERED ON . Apr. 12, 1996 . R.A. (2000.0) . 13h 18.0m . MAGNITUDE . 13.0 . DECL. (2000.0) . -29° 50.0' . OFFSET (") . 52 west 31 south . MAGNITUDE . 11.3 . TYPE . R.V. (Km./s) . 2032 . I.A.U.C. n. 6380 Apr. 13, 1996 . HUBBLE TYPE . E . REFERENCES . More details.

... CfA Home . HCO Home . SAO Home . ... Welcome to CfA . CfA History . ... Laboratory Astrophysics . Extreme Astrophysics . ... 617) 495-7210 . ... 617) 495-7044 . ... 617) 495-7265 . ... HEA Research . ... HEA Home Page . CFA/HEA Home Page . ... High Energy Astrophysics Division (HEAD) . Chandra X-ray Center . ... Chandra Cluster Cosmology Project . Chandra Multiwavelength Project (ChaMP) . ... Chandra-Planck Clusters Project . ... CfA Virtual Observatory Project . ...

... Our Sun is part of a huge wheel-shaped collection of stars. ... Astronomers have long suspected it was a very massive black hole, and that every galaxy had such a central mass, created early in the history of the universe. ... However, unless that object happens to be headed directly at the black hole (a relatively small target) it will just swing around and fly away again, like a comet making a pass at the Sun. The velocity acquired in falling towards the black hole also helps it escape. ...

... Fermi Space Telescope , NASA Explanation: What is creating the gamma rays at the center of our Galaxy? ... Over the past few years the orbiting Fermi Gamma-ray Space Telescope has been imaging our Galaxy's center in gamma-rays . ... A raw image of the Galactic Center region in gamma-rays is shown above on the left, while the image on the right has all known sources subtracted -- leaving an unexpected excess. ... Publications with keywords: Galactic Center - gamma ray - dark matter . ...

. " The Arecibo Observatory is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations . expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation."

... These Frontier Fields will combine the power of HST with the natural gravitational telescopes of high-magnification clusters of galaxies. ... We are soliciting gravitational lensing maps for the last four Hubble Frontier Fields clusters (MACSJ0717.5+3745, MACSJ1149.5+2223, AbellS1063, and Abell 370) based upon the exceptionally deep HST FF imaging and other new ancillary data. ... For the full set of proposal instructions and requirements, see the FY16 Frontier Fields Lensing Map Call for Proposals....

... Staff . Research staff . ... Star formation . ... Historical highlights . Historical research . ... GIANO opens a new window on stellar and planetary astrophysics . ... During its commissioning in July 2012, spectra of the sky and of luminous stars have been taken with GIANO. ... The results are published on Astronomy & Astrophysics 2013 (in press): " GIANO-TNG spectroscopy of red supergiants in the young star cluster RSGC2 " led by Livia Origlia (Principal Investigator) and 21 co-authots. ...

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...