Showing 2009 · astro-ph.GAShow all

7 papers · 2 filters

astro-ph.GA2009★ 240 cited

A new radiative cooling curve based on an up to date plasma emission code

K. M. Schure, D. Kosenko, J. S. Kaastra +2

This work presents a new plasma cooling curve that is calculated using the SPEX package. We compare our cooling rates to those in previous works, and implement the new cooling func…

astro-ph.GA2009★ 18 cited

Near-infrared spectroscopy of AGB star candidates in Fornax, Sculptor and NGC 6822

M. A. T. Groenewegen, A. Lancon, M. Marescaux

Context: The Asymptotic Giant Branch (AGB) phase is characterised by substantial mass loss that is accompanied by the formation of dust. In extreme cases this will make the star no…

astro-ph.GA2009★ 33 cited

Spitzer/IRAC view of Sh 2-284: Searching for evidence of triggered star formation in an isolated region in the outer Milky Way

E. Puga, S. Hony, C. Neiner +5

Using Spitzer/IRAC observations of a region to be observed by the CoRoT satellite, we have unraveled a new complex star-forming region at low metallicity in the outer Galaxy. We pe…

astro-ph.GA2009★ 15 cited

Evolution of Magnetic Fields and Cosmic Ray Acceleration in Supernova Remnants

K. M. Schure, J. Vink, A. Achterberg +1

Observations show that the magnetic field in young supernova remnants (SNRs) is significantly stronger than can be expected from the compression of the circumstellar medium (CSM) b…

astro-ph.GA2009★ 19 cited

Long-term photometric monitoring with the Mercator telescope. Frequencies and multicolour amplitudes of Doradus stars

J. Cuypers, C. Aerts, P. De Cat +21

Gamma Doradus stars are excellent targets for asteroseismology since the gravity modes present in these stars probe the deep stellar interiors. Mode identification will improve the…

astro-ph.GA2009★ 145 cited

Stellar populations in the Galactic bulge

E. Vanhollebeke, M. A. T. Groenewegen, L. Girardi

AIMS:The aim of this paper is to study the characteristics of the stellar populations and the metallicity distribution in the Galactic bulge. We study the entire stellar population…

astro-ph.GA2009★ 88 cited

A VLT VIMOS study of the anomalous BCD Mrk 996: mapping the ionised gas kinematics and abundances

B. L. James, Y. G. Tsamis, M. J. Barlow +4

A study of the blue compact dwarf (BCD) galaxy Mrk 996 based on high resolution optical VLT VIMOS integral field unit spectroscopy is presented. Mrk 996 displays multi-component li…