Laine, Seppo and Grillmair, Carl J. and Martínez-Delgado, David and Romanowsky, Aaron J. and Capak, Peter L. and Arendt, Richard G. and Ashby, Matthew L. N. and Davies, James E. and Majewski, Steven R. and GaBany, R. Jay (2016) Imaging of NGC 5907's stellar stream. In: The General Assembly of Galaxy Halos: Structure, Origin and Evolution. Proceedings of the International Astronomical Union. No.317. Cambridge University Press , Cambridge, pp. 324-325. ISBN 9781107138193 http://resolver.caltech.edu/CaltechAUTHORS:20170227-100310208
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We have obtained deep g, r, and i-band Subaru and ultra-deep 3.6 μm IRAC images of parts of the multiply-wrapped stellar stream around the nearby edge-on galaxy NGC 5907. We have fitted the surface brightness measurements of the stream with FSPS stellar population synthesis models to derive the metallicity and age of the brightest parts of the stream. The resulting relatively high metallicity ([Fe/H] = −0.3) is consistent with a major merger scenario but a satellite accretion event cannot be ruled out.
|Item Type:||Book Section|
|Additional Information:||© 2016 International Astronomical Union. Published online: 09 May 2016. This work is based in part on observations made with the Spitzer Space Telescope, operated by JPL/Caltech under a contract with NASA and with the Subaru Telescope, operated by NAOJ. Support for this work was provided by NASA through an award issued by JPL/Caltech.|
|Group:||COSMOS, Infrared Processing and Analysis Center (IPAC)|
|Subject Keywords:||galaxies: evolution, galaxies: halos, galaxies: individual (NGC 5907), galaxies: interactions, galaxies: structure|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||27 Feb 2017 18:11|
|Last Modified:||27 Feb 2017 18:11|
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