https://wiki.gravity.cf.ac.uk/ 2026-04-06T17:18:42+00:00 https://wiki.gravity.cf.ac.uk/ https://wiki.gravity.cf.ac.uk/_media/logo.png text/html 2014-02-10T13:56:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gravity.cf.ac.uk/physx/astrolunch/anaximander_-_the_first_cosmologist?rev=1392040591&do=diff Title ---------- “Anaximander - The first cosmologist” text/html 2014-03-10T09:26:42+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gravity.cf.ac.uk/physx/astrolunch/filamentary_structures?rev=1394443602&do=diff Title ---------- “From Filamentary Networks to Dense Cores in Molecular Clouds: Toward a New Paradigm for Star Formation” Arxiv link <http://arxiv.org/abs/1312.6232> Abstract ---------- Based on a number of papers but mainly on the review by Philippe Andre et al. 2013. Toward a New Paradigm for Star Formation. text/html 2013-10-21T09:21:20+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gravity.cf.ac.uk/physx/astrolunch/grb_091024a_and_the_nature_of_ultra-long_gamma-ray_bursts?rev=1382347280&do=diff Title ---------- “GRB 091024A and the Nature of Ultra-long Gamma-ray Bursts” Arxiv link <http://arxiv.org/abs/1310.0313> Abstract ---------- We present a broadband study of gamma-ray burst (GRB) 091024A within the context of other ultra-long-duration GRBs. An unusually long burst detected by Konus-Wind, Swift, and Fermi, GRB 091024A has prompt emission episodes covering ~1300 s, accompanied by bright and highly structured optical emission captured by various rapid-response facilities, inc… text/html 2013-10-28T14:54:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gravity.cf.ac.uk/physx/astrolunch/is_science_scientific?rev=1382972058&do=diff Title ---------- “Deep Impact: Unintended consequences of journal rank” Arxiv link <http://arxiv.org/abs/1301.3748> Abstract ---------- Most researchers acknowledge an intrinsic hierarchy in the scholarly journals ('journal rank') that they submit their work to, and adjust not only their submission but also their reading strategies accordingly. On the other hand, much has been written about the negative effects of institutionalizing journal rank as an impact measure. So far, contributions… text/html 2013-11-04T13:22:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gravity.cf.ac.uk/physx/astrolunch/nearby_galaxies_as_pointers_to_a_better_theory_of_cosmic_evolution?rev=1383571332&do=diff Title ---------- “Nearby galaxies as pointers to a better theory of cosmic evolution” Arxiv link <http://arxiv.org/abs/1001.1484> Abstract ---------- The great advances in the network of cosmological tests show that the relativistic Big Bang theory is a good description of our expanding Universe. However, the properties of nearby galaxies that can be observed in greatest detail suggest that a better theory would describe a mechanism by which matter is more rapidly gathered into galaxies a… text/html 2014-01-22T10:31:08+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gravity.cf.ac.uk/physx/astrolunch/observational_evidence_of_black_holes?rev=1390386668&do=diff Title ---------- “Observational Evidence for Black Holes” Arxiv link <http://arxiv.org/abs/1312.6698> Abstract ---------- Astronomers have discovered two populations of black holes: (i) stellar-mass black holes with masses in the range 5 to 30 solar masses, millions of which are present in each galaxy in the universe, and (ii) supermassive black holes with masses in the range 106 to 1010 solar masses, one each in the nucleus of every galaxy. There is strong circumstantial evidence that al… text/html 2014-11-09T10:08:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gravity.cf.ac.uk/physx/astrolunch/start?rev=1415527715&do=diff Cardiff AstroLunch AstroLunch will be held from 12.15-12.35pm on Mondays in room N/3.23 (The William lower room/Chart Room) (But we have the room booked from 12-1pm so could go on for longer if requested) Don't forget to bring your lunch! Astrolunch is a weekly forum for discussing astronomical literature and results, covering all aspects from instrumentation, planetary science, and galactic to extra-galactic astronomy and cosmology. text/html 2014-01-29T14:50:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gravity.cf.ac.uk/physx/astrolunch/sub-millimeter_galaxies_as_progenitors_of_compact_quiescent_galaxies?rev=1391007029&do=diff Title ---------- “Sub-millimeter galaxies as progenitors of compact quiescent galaxies” Arxiv link <http://arxiv.org/abs/1401.1510> Abstract ---------- Three billion years after the big bang (at redshift z=2), half of the most massive galaxies were already old, quiescent systems with little to no residual star formation and extremely compact with stellar mass densities at least an order of magnitude larger than in low redshift ellipticals, their descendants. Little is known about how they… text/html 2013-10-13T09:20:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gravity.cf.ac.uk/physx/astrolunch/the_rapid_assembly_of_an_elliptical_galaxy_of_400_billion_solar_masses_at_a_redshift_of_2.3?rev=1381656019&do=diff Title ---------- The rapid assembly of an elliptical galaxy of 400 billion solar masses at a redshift of 2.3 Arxiv link <http://arxiv.org/abs/1305.4930> Abstract ---------- Stellar archeology1 shows that massive elliptical galaxies today formed rapidly about ten billion years ago with star formation rates above several hundreds solar masses per year (M&#8857; yr&#8722;1). Their progenitors are likely the sub-millimeter-bright galaxies (SMGs)2 at redshifts (z) greater than 2. While SMGs’ m…