Hintze Centre for Astrophysical Surveys

Research group

Research theme

Sub department

About

Massive stars exploding in a He-rich circumstellar medium – III. SN 2006jc: infrared echoes from new and old dust in the progenitor CSM

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 389:1 (2008) 141-155

Authors:

S Mattila, WPS Meikle, P Lundqvist, A Pastorello, R Kotak, J Eldridge, S Smartt, A Adamson, CL Gerardy, L Rizzi, AW Stephens, SD Van Dyk
More details from the publisher

VLT detection of a red supergiant progenitor of the type IIP supernova 2008bk

(2008)

Authors:

S Mattila, SJ Smartt, JJ Eldridge, JR Maund, RM Crockett, IJ Danziger
More details from the publisher

Blazing trails: Microquasars as head-tail sources and the seeding of magnetized plasma into the ISM

(2008)

Authors:

S Heinz, HJ Grimm, RA Sunyaev, RP Fender
More details from the publisher

The blue supergiant Sher 25 and its intriguing hourglass nebula

Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 388:3 (2008) 1127-1142

Authors:

MA Hendry, SJ Smartt, ED Skillman, CJ Evans, C Trundle, DJ Lennon, PA Crowther, I Hunter
More details from the publisher

Models for low-mass X-ray binaries in the elliptical galaxies NGC 3379 and NGC 4278: Comparison with observations

Astrophysical Journal 683:1 (2008) 346-356

Authors:

T Fragos, V Kalogera, K Belczynski, G Fabbiano, DW Kim, NJ Brassington, L Angelini, RL Davies, JS Gallagher, AR King, S Pellegrini, G Trinchieri, SE Zepf, A Kundu, A Zezas

Abstract:

We present theoretical models for the formation and evolution of populations of low-mass X-ray binaries (LMXBs) in the two elliptical galaxies NGC 3379 and NGC 4278. The models are calculated with the recently updated StarTrack code, assuming only a primordial galactic field LMXB population. StarTrack is an advanced population synthesis code that has been tested and calibrated using detailed binary star calculations and incorporates all the important physical processes of binary evolution. The simulations are targeted to modeling and understanding the origin of the X-ray luminosity functions (XLFs) of point sources in these galaxies. For the first time we explore the population XLF in luminosities below 1037 ergs s-1, as probed by the most recent observational results. We consider models for the formation and evolution of LMXBs in galactic fields with different CE efficiencies, stellar wind prescriptions, magnetic braking laws, and IMFs. We identify models that produce XLFs consistent with the observations both in shape and absolute normalization, suggesting that a primordial galactic field LMXB population can make a significant contribution to the total population of an elliptical galaxy. We also find that the treatment of the outburst luminosity of transient systems remains a crucial factor for the determination of the XLF, since the modeled populations are dominated by transient X-ray systems. © 2008. The American Astronomical Society. All rights reserved.
More details from the publisher
More details