2.2k citations
- Centre National de la Recherche ScientifiqueFR33 papers
- University of WarwickGB32 papers
- Instituto de Astrofísica de CanariasES23 papers
- Chinese Academy of SciencesCN22 papers
- Imperial College LondonGB22 papers
- National Astronomical ObservatoriesCN22 papers
- Rutherford Appleton LaboratoryGB19 papers
- University of CambridgeGB18 papers
- University College LondonGB17 papers
- University of OxfordGB17 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR16 papers
- Columbia UniversityUS14 papers
13 papers · 1 filter
OH in Messier 82
M. K. Argo, A. Pedlar, T. W. B. Muxlow +4
Several new main line OH masers have been detected in the nearby starburst galaxy M82. Eight masers have been detected to 5 sigma, six of which are new detections. Observations cov…
On the arithmetic of tight closure
Holger Brenner, Mordechai Katzman
We provide a negative answer to an old question in tight closure theory by showing that the containment x^3y^3 \in (x^4,y^4,z^4)^* in K[x,y,z]/(x^7+y^7-z^7) holds for infinitely ma…
Outflows of neutral (and ionized) gas in radio galaxies
R. Morganti, T. Oosterloo, C. Tadhunter
Outflows up to 1500 km/s of atomic neutral hydrogen are detected in a growing number of radio galaxies. Outflows with similar velocities are also detected in ionized gas, suggestin…
Characteristic-independence of Betti numbers of graph ideals
Mordechai Katzman
In this paper we study the Betti numbers of Stanley-Reisner ideals generated in degree 2. We show that the first six Betti numbers do not depend on the characteristic of the ground…
Infinite sums of Adams operations and cobordism
Imma Galvez, Sarah Whitehouse
In recent work by Clarke, Crossley and the second author, various algebras of stable degree zero operations in p-local K-theory were described explicitly. The elements are certain…
Spitzer-IRS Sectroscopy of the Prototype Wolf-Rayet star EZ CMa (HD 50896)
P W Morris, P A Crowther, J R Houck
We present mid-infrared Spitzer-IRS spectroscopy of the prototype WN star EZ CMa (HD50896, WN4b). Numerous stellar wind lines of HeII are revealed, plus fine-structure lines of [Ne…