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Dr Russell Smith's Outputs (83)

The KMOS Cluster Survey (KCS). I. The Fundamental Plane and the Formation Ages of Cluster Galaxies at Redshift 1.4 < Z < 1.6 (2017)
Journal Article
Beifiori, A., Mendel, J. T., Chan, J. C., Saglia, R. P., Bender, R., Cappellari, M., …Wegner, M. (2017). The KMOS Cluster Survey (KCS). I. The Fundamental Plane and the Formation Ages of Cluster Galaxies at Redshift 1.4 < Z < 1.6. Astrophysical Journal, 846(2), Article 120. https://doi.org/10.3847/1538-4357/aa8368

We present the analysis of the fundamental plane (FP) for a sample of 19 massive red-sequence galaxies (${M}_{\star }\gt 4\times {10}^{10}$ ${M}_{\odot }$) in three known overdensities at $1.39\lt z\lt 1.61$ from the K-band Multi-object Spectrograph... Read More about The KMOS Cluster Survey (KCS). I. The Fundamental Plane and the Formation Ages of Cluster Galaxies at Redshift 1.4 < Z < 1.6.

Improved mass constraints for two nearby strong-lensing elliptical galaxies from Hubble Space Telescope Imaging (2017)
Journal Article
Collier, W. P., Smith, R. J., & Lucey, J. R. (2017). Improved mass constraints for two nearby strong-lensing elliptical galaxies from Hubble Space Telescope Imaging. Monthly Notices of the Royal Astronomical Society, 473(1), 1103-1107. https://doi.org/10.1093/mnras/stx2297

We analyse newly obtained Hubble Space Telescope (HST) imaging for two nearby strong lensing elliptical galaxies, SNL-1 (z = 0.03) and SNL-2 (z = 0.05), in order to improve the lensing mass constraints. The imaging reveals previously unseen structure... Read More about Improved mass constraints for two nearby strong-lensing elliptical galaxies from Hubble Space Telescope Imaging.

The Initial Mass Function in the Nearest Strong Lenses from SNELLS: Assessing the Consistency of Lensing, Dynamical, and Spectroscopic Constraints (2017)
Journal Article
Newman, A., Smith, R., Conroy, C., Villaume, A., & van Dokkum, P. (2017). The Initial Mass Function in the Nearest Strong Lenses from SNELLS: Assessing the Consistency of Lensing, Dynamical, and Spectroscopic Constraints. Astrophysical Journal, 845(2), Article 157. https://doi.org/10.3847/1538-4357/aa816d

We present new observations of the three nearest early-type galaxy (ETG) strong lenses discovered in the SINFONI Nearby Elliptical Lens Locator Survey (SNELLS). Based on their lensing masses, these ETGs were inferred to have a stellar initial mass fu... Read More about The Initial Mass Function in the Nearest Strong Lenses from SNELLS: Assessing the Consistency of Lensing, Dynamical, and Spectroscopic Constraints.

An extended cold gas absorber in a central cluster galaxy (2017)
Journal Article
Smith, R. J., & Edge, A. C. (2017). An extended cold gas absorber in a central cluster galaxy. Monthly Notices of the Royal Astronomical Society: Letters, 471(1), L66-L70. https://doi.org/10.1093/mnrasl/slx107

We present the serendipitous discovery of an extended cold gas structure projected close to the brightest cluster galaxy (BCG) of the z = 0.045 cluster Abell 3716, from archival integral field spectroscopy. The gas is revealed through narrow Na D lin... Read More about An extended cold gas absorber in a central cluster galaxy.

Stellar dynamics in the strong-lensing central galaxy of Abell 1201: a low stellar mass-to-light ratio, a large central compact mass and a standard dark matter halo (2017)
Journal Article
Smith, R. J., Lucey, J. R., & Edge, A. C. (2017). Stellar dynamics in the strong-lensing central galaxy of Abell 1201: a low stellar mass-to-light ratio, a large central compact mass and a standard dark matter halo. Monthly Notices of the Royal Astronomical Society, 471(1), 383-393. https://doi.org/10.1093/mnras/stx1573

We analyse the stellar kinematics of the z = 0.169 brightest cluster galaxy in Abell 1201, using integral field observations acquired with the Multi-Unit Spectroscopic Explorer on the Very Large Telescope. This galaxy has a gravitationally lensed arc... Read More about Stellar dynamics in the strong-lensing central galaxy of Abell 1201: a low stellar mass-to-light ratio, a large central compact mass and a standard dark matter halo.

KINETyS: Constraining spatial variations of the stellar initial mass function in early-type galaxies (2017)
Journal Article
Alton, P. D., Smith, R. J., & Lucey, J. R. (2017). KINETyS: Constraining spatial variations of the stellar initial mass function in early-type galaxies. Monthly Notices of the Royal Astronomical Society, 468(2), 1594-1615. https://doi.org/10.1093/mnras/stx464

The heavyweight stellar initial mass function (IMF) observed in the cores of massive early-type galaxies (ETGs) has been linked to formation of their cores in an initial swiftly quenched rapid starburst. However, the outskirts of ETGs are thought to... Read More about KINETyS: Constraining spatial variations of the stellar initial mass function in early-type galaxies.

A counter-image to the gravitational arc in Abell 1201: Evidence for IMF variations, or a 10^10 M⊙ black hole? (2017)
Journal Article
Smith, R. J., Lucey, J. R., & Edge, A. C. (2017). A counter-image to the gravitational arc in Abell 1201: Evidence for IMF variations, or a 10^10 M⊙ black hole?. Monthly Notices of the Royal Astronomical Society, 467(1), 836-848. https://doi.org/10.1093/mnras/stx059

Abell 1201 is a massive galaxy cluster at z=0.169 with a brightest cluster galaxy (BCG) that acts as a gravitational lens to a background source at z=0.451. The lensing configuration is unusual, with a single bright arc formed at small radius (∼2 arc... Read More about A counter-image to the gravitational arc in Abell 1201: Evidence for IMF variations, or a 10^10 M⊙ black hole?.

A strong-lensing elliptical galaxy in the MaNGA survey (2016)
Journal Article
Smith, R. J. (2017). A strong-lensing elliptical galaxy in the MaNGA survey. Monthly Notices of the Royal Astronomical Society: Letters, 464(1), L46-L50. https://doi.org/10.1093/mnrasl/slw174

I report discovery of a new galaxy-scale gravitational lens system, identified using public data from the MaNGA survey, as part of a systematic search for lensed background line emitters. The lens is SDSS J170124.01+372258.0, a giant elliptical galax... Read More about A strong-lensing elliptical galaxy in the MaNGA survey.

The IMF-sensitive 1.14-μm Na i doublet in early-type galaxies (2015)
Journal Article
Smith, R. J., Alton, P. D., Lucey, J. R., Conroy, C., & Carter, D. (2015). The IMF-sensitive 1.14-μm Na i doublet in early-type galaxies. Monthly Notices of the Royal Astronomical Society: Letters, 454(1), L71-L75. https://doi.org/10.1093/mnrasl/slv132

We present J-band spectroscopy of passive galaxies focusing on the Na i doublet at 1.14 μm. Like the Na i 0.82 μm doublet, this feature is strong in low-mass stars and hence may provide a useful probe of the initial mass function (IMF). From high sig... Read More about The IMF-sensitive 1.14-μm Na i doublet in early-type galaxies.

The SINFONI Nearby Elliptical Lens Locator Survey: discovery of two new low-redshift strong lenses and implications for the initial mass function in giant early-type galaxies (2015)
Journal Article
Smith, R., Lucey, J., & Conroy, C. (2015). The SINFONI Nearby Elliptical Lens Locator Survey: discovery of two new low-redshift strong lenses and implications for the initial mass function in giant early-type galaxies. Monthly Notices of the Royal Astronomical Society, 449(4), 3441-3457. https://doi.org/10.1093/mnras/stv518

We present results from a blind survey to identify strong gravitational lenses among the population of low-redshift early-type galaxies. The SINFONI Nearby Elliptical Lens Locator Survey (SNELLS) uses integral-field infrared spectroscopy to search fo... Read More about The SINFONI Nearby Elliptical Lens Locator Survey: discovery of two new low-redshift strong lenses and implications for the initial mass function in giant early-type galaxies.

A surprising consistency between the far-infrared galaxy luminosity functions of the field and Coma (2014)
Journal Article
Hickinbottom, S., Simpson, C., James, P., Ibar, E., Carter, D., Boselli, A., …Valentijn, E. (2014). A surprising consistency between the far-infrared galaxy luminosity functions of the field and Coma. Monthly Notices of the Royal Astronomical Society, 442(2), 1286-1293. https://doi.org/10.1093/mnras/stu924

We present new deep images of the Coma Cluster from the ESA Herschel Space Observatory at wavelengths of 70, 100 and 160 μm, covering an area of 1.75 × 1.0 square degrees encompassing the core and south-west infall region. Our data display an excess... Read More about A surprising consistency between the far-infrared galaxy luminosity functions of the field and Coma.

Variations in the initial mass function in early-type galaxies: a critical comparison between dynamical and spectroscopic results (2014)
Journal Article
Smith, R. J. (2014). Variations in the initial mass function in early-type galaxies: a critical comparison between dynamical and spectroscopic results. Monthly Notices of the Royal Astronomical Society, 443(1), L69-L73. https://doi.org/10.1093/mnrasl/slu082

I present a comparison between published dynamical (ATLAS3D) and spectroscopic (Conroy & van Dokkum) constraints on the stellar initial mass function (IMF) in early-type galaxies, using the 34 galaxies in common between the two works. Both studies in... Read More about Variations in the initial mass function in early-type galaxies: a critical comparison between dynamical and spectroscopic results.

Quenching star formation in cluster galaxies (2014)
Journal Article
Taranu, D. S., Hudson, M. J., Balogh, M. L., Smith, R. J., Power, C., Oman, K. A., & Krane, B. (2014). Quenching star formation in cluster galaxies. Monthly Notices of the Royal Astronomical Society, 440(3), 1934-1949. https://doi.org/10.1093/mnras/stu389

In order to understand the processes that quench star formation in cluster galaxies, we construct a library of subhalo orbits drawn from Λ cold dark matter cosmological N-body simulations of four rich clusters. We combine these orbits with models of... Read More about Quenching star formation in cluster galaxies.

Dissecting the red sequence: the bulge and disc colours of early-type galaxies in the Coma cluster (2014)
Journal Article
Head, J., Lucey, J., Hudson, M., & Smith, R. (2014). Dissecting the red sequence: the bulge and disc colours of early-type galaxies in the Coma cluster. Monthly Notices of the Royal Astronomical Society, 440(2), 1690-1711. https://doi.org/10.1093/mnras/stu325

We explore the internal structure of red-sequence galaxies in the Coma cluster across a wide range of luminosities (−17 > Mg > −22) and cluster-centric radii (0 < rcluster < 1.3 r200). We present the 2D bulge-disc decomposition of galaxies in deep Ca... Read More about Dissecting the red sequence: the bulge and disc colours of early-type galaxies in the Coma cluster.

Barred S0 galaxies in the Coma cluster (2014)
Journal Article
Lansbury, G., Lucey, J., & Smith, R. (2014). Barred S0 galaxies in the Coma cluster. Monthly Notices of the Royal Astronomical Society, 439(2), 1749-1764. https://doi.org/10.1093/mnras/stu049

This study uses r-band images from the Eighth Data Release of the Sloan Digital Sky Survey (SDSS DR8) to study bars in lenticular (S0) galaxies in one of the nearest rich cluster environments, the Coma cluster. We develop techniques for bar detection... Read More about Barred S0 galaxies in the Coma cluster.

A giant elliptical galaxy with a lightweight initial mass function (2013)
Journal Article
Smith, R., & Lucey, J. (2013). A giant elliptical galaxy with a lightweight initial mass function. Monthly Notices of the Royal Astronomical Society, 434(3), 1964-1977. https://doi.org/10.1093/mnras/stt1141

We present new observations of the closest known strong-lensing galaxy, the σ ≈ 330 km s− 1 giant elliptical ESO325−G004, made with the ESO Very Large Telescope. The low redshift of the lens (zl = 0.035) results in arcs being formed at a small fracti... Read More about A giant elliptical galaxy with a lightweight initial mass function.

S0 galaxies in the Coma cluster : environmental dependence of the S0 offset from the Tully-Fisher relation (2013)
Journal Article
Rawle, T. D., Lucey, J. R., Smith, R. J., & Head, J. (2013). S0 galaxies in the Coma cluster : environmental dependence of the S0 offset from the Tully-Fisher relation. Monthly Notices of the Royal Astronomical Society, 433(3), 2667-2692. https://doi.org/10.1093/mnras/stt947

We present deep Gemini Multi-Object Spectrograph long-slit spectroscopy of 15 Coma cluster S0 galaxies, and extract kinematic properties along the major axis to several times the disc scalelength. Supplementing our data set with previously published... Read More about S0 galaxies in the Coma cluster : environmental dependence of the S0 offset from the Tully-Fisher relation.