Peter Erwin: Astronomical Research

Recent Papers

• ``How Large Are the Bars in Barred Galaxies?'' Peter Erwin, 2005. Monthly Notices of the Royal Astronomical Society, submitted. (PDF)

• ``GOYA Survey: U and B Number Counts in the Groth-Westphal Strip,'' M. Carmen Eliche-Moral, Marc Balcells, Mercedes Prieto, César E. García-Dabó, Peter Erwin, and David Cristóbal-Hornillos, 2005. The Astrophysical Journal, submitted.

• ``Anti-Truncation of Disks in Early-Type Barred Galaxies'' Peter Erwin, John E. Beckman, and Michael Pohlen, 2005. The Astrophysical Journal Letters 626: L81. (PDF)

• ``The Nature of Luminous X-Ray Sources with Mid-Infrared Counterparts,'' A. Alonso-Herrero et al., 2004. The Astrophysical Journal Supplement 154: 155. (astro-ph/0406153)

• ``Evidence for a New Elliptical-Galaxy Paradigm: Sérsic and Core Galaxies,'' I. Trujillo, Peter Erwin, A. Asensio Ramos, and Alister W. Graham, 2004. The Astronomical Journal 127: 1917. (PDF)

• ``Double-Barred Galaxies: I. A Catalog of Barred Galaxies with Secondary Bars and Inner Disks,'' Peter Erwin, 2004. Astronomy & Astrophysics 415: 941. (PDF)

• ``When Is a Bulge Not a Bulge? Inner Disks Masquerading as Bulges in NGC 2787 and NGC 3945,'' Peter Erwin, Juan Carlos Vega Beltrán, Alister W. Graham, and John E. Beckman, 2003. The Astrophysical Journal, 597: 929. (PDF)

• ``A New Empirical Model for the Structural Analysis of Early-type Galaxies and a Critical Review of the Nuker Model,'' Alister W. Graham, Peter Erwin, I. Trujillo, and A. Asensio, 2003. The Astronomical Journal 125: 2951. (astro-ph/0306023)

• ``An Imaging Survey of Early-Type Barred Galaxies,'' Peter Erwin and Linda S. Sparke, 2003. The Astrophysical Journal Supplement, 146: 299. (PDF with color figures [17 MB]; PDF with main text [no individual galaxy figures, 1.2 MB])

  Note: This is a rather lengthy paper, with complex color illustrations and somewhat detailed discussions of almost 40 individual galaxies. If you're interested in our methods for finding and measuring inner bars, inner disks, etc., then you might try the second of the two versions listed above, the ``main-text-only'' version (which omits the individual figures for each galaxy, so it's only 1.2 MB). If you think you might be interested in a particular galaxy -- and want to check if it's in the paper first -- I've abstracted the tables listing the galaxies in the sample and our measurements of their components (bars, rings, etc), here: PDF Tables [308 KB].

• ``Double Bars, Inner Disks, and Nuclear Rings in Early-Type Disk Galaxies,'' Peter Erwin and Linda S. Sparke, 2002. The Astronomical Journal 124: 65. (astro-ph/0203514)

• ``A Correlation Between Galaxy Light Concentration and Supermassive Black Hole Mass,'' Alister W. Graham, Peter Erwin, N. Caon, and I. Trujillo, 2001. Astrophysical Journal Letters 563: L11. (astro-ph/0111152)

• ``Triple Bars and Complex Central Structures in Disk Galaxies,'' Peter Erwin and Linda S. Sparke, 1999. The Astrophysical Journal Letters 521: L37-40. (astro-ph/9906262)

• ``Vertical Instabilities and Off-Plane Orbits in Circumbinary Disks,'' Peter Erwin and Linda S. Sparke, 1999. The Astrophysical Journal 521: 798. (Text available as gzipped PostScript [116k] or uncompressed PostScript [312k]; figures available as gzipped PostScript [1.8mb])

• ``Near-Infrared and Ultraviolet Spectrophotometry of Symbiotic Novae,'' R.J. Rudy, S.R. Meier, G.S. Rossano, D.K. Lynch, R.C. Puetter, and Peter Erwin, 1999. The Astrophysical Journal Supplement 121: 533.

Conference Proceedings

• ``Pseudobulges in Barred S0 Galaxies,'' Peter Erwin, John E. Beckman, and Juan Carlos Vega Beltrán, 2004. In Penetrating Bars through Masks of Cosmic Dust, ed. D. L. Block, I. Puerari, K. C. Freeman, R. Groess, and E. K. Block (Dordrecht: Springer), 775. (astro-ph/0409103 )

• ``Stellar Disk Truncations: Where Do We Stand?'' M. Pohlen, J. E. Beckman, S. Hüttemeister, J.H. Knapen, P. Erwin, and R.-J. Dettmar, 2004. In Penetrating Bars through Masks of Cosmic Dust, ed. D. L. Block, I. Puerari, K. C. Freeman, R. Groess, and E. K. Block (Dordrecht: Springer), 731. (astro-ph/0405541 )

• ``The Correlation Between Supermassive Black Hole Mass and the Structure of Ellipticals and Bulges,'' Peter Erwin, N. Caon, and Alister W. Graham, 2003. In Carnegie Observatories Astrophysics Series, Vol. 1: Coevolution of Black Holes and Galaxies, ed. L. C. Ho (Pasadena: Carnegie Observatories, http://www.ociw.edu/ociw/symposia/series/symposium1/proceedings.html) (astro-ph/0212335 )

• ``Inner and Outer Photometric Structure of Elliptical Galaxies,'' Alister W. Graham, Peter Erwin, I. Trujillo, and A. Asensio Ramnos. In Carnegie Observatories Astrophysics Series, Vol. 1: Coevolution of Black Holes and Galaxies, ed. L. C. Ho (Pasadena: Carnegie Observatories, http://www.ociw.edu/ociw/symposia/series/symposium1/proceedings.html)

• ``A Photometric Method to Determine Supermassive Black Hole Masses,'' Alister W. Graham, Peter Erwin, N. Caon, and I. Trujillo, 2003. In Galaxy Evolution: Theory and Observations, eds., V. Avila-Reese, C. Firmani, C.S. Frenk, and C. Allen, RevMexAA (SC) 17, 196. (astro-ph/0206248)

• ``Double Bars and Inner Disks in Barred Galaxies,'' Peter Erwin, 2002. In Disks of Galaxies : Kinematics, Dynamics and Perturbations, eds. E. Athanassoula, A. Bosma, and R. Mujica (San Francisco: ASP Conference Series), 271.

• ``Double Bars, Inner Disks, and Nuclear Rings in Barred Galaxies,''Peter Erwin, L.S. Sparke, J.C. Vega Beltrán, and J.E. Beckman, 2001. In The central kpc of starbursts and AGN: the La Palma connection, eds. J.H. Knapen, J.E. Beckman, I. Shlosman and T.J. Mahoney (San Francisco: ASP Conference Series), 85. (astro-ph/0107141)

• ``Stellar Nuclear Rings in Barred Galaxies: Fossils of Past Circumnuclear Starbursts?'' Peter Erwin, Juan Carlos Vega Beltrán, and John E. Beckman, 2001. In The central kpc of starbursts and AGN: the La Palma connection, op cit., 171. (astro-ph/0112056)

• ``Kinematics and photometry as complementary tools in the study of barred galaxies,'' J.C. Vega Beltrán, P. Erwin, J. Beckman, A. Pizzella, E. M. Corsini, F. Bertola, and W. W. Zeilinger, 2001. In Galaxy Disks and Disk Galaxies, eds. J. G. Funes and E. M. Corsini (San Francisco: ASP Conference Series), 245. (astro-ph/0010593)

• ``NGC 4340: Double Bar + Fossil Nuclear Ring,'' Peter Erwin, J.C. Vega Beltrán, and J. Beckman, 2001. Astrophysics and Space Science Supplement 277: 457. (astro-ph/0009178)

Last modified 23 July 2005.