Name: Erich Wenderoth

Institution: Gemini Observatory

e-mail: ewenderoth(no-spam)gemini.edu

Partner Contry: GS

Science Meeting: Yes

User Meeting: Yes

NGO Staff Meeting: No

Presentation: Yes

Format: Poster

Title: GMOS long-slit spectroscopy of the galaxy FM 287-14

Co-author: Poppe, Paulo C. R. (PI)(2); Faundez-Abans, M. (1), de Oliveira-Abans, M. (1), Martin, V.A.F. (2,3), Rodriguez Ardila, A (1), Wenderoth, E. (4)

Co-authors' Institutions: (1) MCT/Laboratorio Nacional de Astrofisica, Brasil. (2) UEFS, Departamento de Fisica, Brasil. (3) UEFS, Observatorio Astronomico Antares, Brasil. (4) Gemini South Observatory, Chile.

Abstract:

We herein report the results of long-slit spectroscopy of the peculiar galaxy FM 287-14, which was observed with GMOS South at Gemini in 2006. The 1.5-arcsec slit was aligned along both the "arm-ring" major axis (NW-SE direction) and the minor axis of the central body (NE-SW direction). Two gratings were used with both long-slit positions - B600/501 and R400/676 - to cover as much of the visible part of the spectrum as possible. FM 287-14 is a tidally perturbed galaxy suggesting a close companion encounter in the past. The calculated heliocentric systemic velocity is 9,250 km/s (z = 0.031) and the nuclear spectrum exhibits indications of activity. The external "arm-ring" shows clear star formation regions, which must have been triggered by the passage of a density shockwave along the disk of the galaxy. In this poster, we displaythe radial velocity distribution along the major and minor axes, the radial profile of the [NII]6583/Hα, [OI]6300/Hα, [SII]/Hα and [OIII]/Hα ratios, and make a preliminary discussion of the population content of the different substructures of the galaxy, as well as of its mass and its structural/morphological characteristics.

Comments:

A second poster: "Fine structure and broad-band photometry of the peculiar galaxy ESO 287-G40". Martin, Vera A. F., Faundez-Abans, M., de Oliveira-Abans, M., Poppe, P.C.R., Rodriguez Ardila, A., Wenderoth, E. Same institutions of the previous poster. See abstract into the PI registration form.