http://apparentbrightness.net astronomy and stuff Mon, 03 Dec 2007 16:07:54 +0000 http://wordpress.org/?v=2.5.1 en http://apparentbrightness.net/2007/11/02/the-initial-cluster-mass-function-of-super-star-clusters-in-irregular-and-spiral-galaxies/ http://apparentbrightness.net/2007/11/02/the-initial-cluster-mass-function-of-super-star-clusters-in-irregular-and-spiral-galaxies/#comments Fri, 02 Nov 2007 09:30:35 +0000 Thomas Marquart http://apparentbrightness.net/2007/11/02/the-initial-cluster-mass-function-of-super-star-clusters-in-irregular-and-spiral-galaxies/

Dowell et al.

http://arxiv.org/abs/astro-ph/0611586

SSCs in nearby spirals and irregulars from SDSS

SDSS colors plus spectral evolutionary modelling to determine cluster ages and mass.

They find a steeper slope for the mass function (at high masses) in irregulars as compared to spirals.

I wonder how reliable the masses are from this method. It’s a tricky business and dynamical cluster masses would be nicer.

]]> http://apparentbrightness.net/2007/11/02/the-initial-cluster-mass-function-of-super-star-clusters-in-irregular-and-spiral-galaxies/feed/ http://apparentbrightness.net/2007/10/31/the-evolution-of-very-massive-stars/ http://apparentbrightness.net/2007/10/31/the-evolution-of-very-massive-stars/#comments Wed, 31 Oct 2007 14:40:14 +0000 Thomas Marquart http://apparentbrightness.net/2007/10/31/the-evolution-of-very-massive-stars/

Belkus et al.

http://arxiv.org/abs/astro-ph/0701334

dense clusters

supermassive stars

]]> http://apparentbrightness.net/2007/10/31/the-evolution-of-very-massive-stars/feed/