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NGC 1266 AS A LOCAL CANDIDATE FOR RAPID CESSATION OF STAR FORMATION

ASTROPHYSICAL JOURNAL 780:2 (2014) ARTN 186

Authors:

Katherine Alatalo, Kristina Nyland, Genevieve Graves, Susana Deustua, Kristen Shapiro Griffin, Pierre-Alain Duc, Michele Cappellari, Richard M McDermid, Timothy A Davis, Alison F Crocker, Lisa M Young, Philip Chang, Nicholas Scott, Sabrina L Cales, Estelle Bayet, Leo Blitz, Maxime Bois, Frederic Bournaud, Martin Bureau, Roger L Davies, PT de Zeeuw, Eric Emsellem, Sadegh Khochfar, Davor Krajnovic, Harald Kuntschner, Raffaella Morganti, Thorsten Naab, Tom Oosterloo, Marc Sarzi, Paolo Serra, Anne-Marie Weijmans
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Secular Evolution in Action: Central Values and Radial Trends in Boxy Bulges

STRUCTURE AND DYNAMICS OF DISK GALAXIES 480 (2014) 153-156

Authors:

Michael J Williams, Martin Bureau, Harald Kuntschner
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The Atlas3D project -- XXVII. Cold Gas and the Colours and Ages of Early-type Galaxies

(2013)

Authors:

LM Young, N Scott, P Serra, K Alatalo, E Bayet, L Blitz, M Bois, F Bournaud, M Bureau, AF Crocker, M Cappellari, RL Davies, TA Davis, PT de Zeeuw, P-A Duc, E Emsellem, S Khochfar, D Krajnovic, H Kuntschner, RM McDermid, R Morganti, T Naab, T Oosterloo, M Sarzi, A-M Weijmans
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The first month of evolution of the slow-rising Type IIP SN 2013ej in M74★

Monthly Notices of the Royal Astronomical Society: Letters Oxford University Press (OUP) 438:1 (2013) l101-l105

Authors:

S Valenti, D Sand, A Pastorello, ML Graham, DA Howell, JT Parrent, L Tomasella, P Ochner, M Fraser, S Benetti, F Yuan, SJ Smartt, JR Maund, I Arcavi, A Gal-Yam, C Inserra, D Young
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The Youngest Known X-ray binary: CIrcinus X-1 and ITS natal supernova REMNANT

Astrophysical Journal 779:2 (2013)

Authors:

S Heinz, P Sell, RP Fender, PG Jonker, WN Brandt, DE Calvelo-Santos, AK Tzioumis, MA Nowak, NS Schulz, R Wijnands, M Van Der Klis

Abstract:

Because supernova remnants are short-lived, studies of neutron star X-ray binaries within supernova remnants probe the earliest stages in the life of accreting neutron stars. However, such objects are exceedingly rare: none were known to exist in our Galaxy. We report the discovery of the natal supernova remnant of the accreting neutron star Circinus X-1, which places an upper limit of t < 4600 yr on its age, making it the youngest known X-ray binary and a unique tool to study accretion, neutron star evolution, and core-collapse supernovae. This discovery is based on a deep 2009 Chandra X-ray observation and new radio observations of Circinus X-1. Circinus X-1 produces type I X-ray bursts on the surface of the neutron star, indicating that the magnetic field of the neutron star is small. Thus, the young age implies either that neutron stars can be born with low magnetic fields or that they can rapidly become de-magnetized by accretion. Circinus X-1 is a microquasar, creating relativistic jets that were thought to power the arcminute-scale radio nebula surrounding the source. Instead, this nebula can now be attributed to non-thermal synchrotron emission from the forward shock of the supernova remnant. The young age is consistent with the observed rapid orbital evolution and the highly eccentric orbit of the system and offers the chance to test the physics of post-supernova orbital evolution in X-ray binaries in detail for the first time. © 2013. The American Astronomical Society. All rights reserved..
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