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John Lucey's Outputs (144)

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?.

The 6dF Galaxy Survey: Bulk Flows on 50−70h−1 Mpc scales (2015)
Journal Article
Scrimgeour, M. I., Davis, T. M., Blake, C., Staveley-Smith, L., Magoulas, C., Springob, C. M., …Poole, G. B. (2016). The 6dF Galaxy Survey: Bulk Flows on 50−70h−1 Mpc scales. Monthly Notices of the Royal Astronomical Society, 455(1), 386-401. https://doi.org/10.1093/mnras/stv2146

We measure the bulk flow of the local Universe using the 6dF Galaxy Survey peculiar velocity sample (6dFGSv), the largest and most homogeneous peculiar velocity sample to date. 6dFGSv is a Fundamental Plane sample of ∼104 peculiar velocities covering... Read More about The 6dF Galaxy Survey: Bulk Flows on 50−70h−1 Mpc scales.

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.

Beyond Sérsic + exponential disc morphologies in the Coma Cluster (2015)
Journal Article
Head, J. T., Lucey, J. R., & Hudson, M. J. (2015). Beyond Sérsic + exponential disc morphologies in the Coma Cluster. Monthly Notices of the Royal Astronomical Society, 453(4), 3730-3753. https://doi.org/10.1093/mnras/stv1662

Galaxies are not limited to simple spheroid or bulge + disc morphologies. We explore the diversity of internal galaxy structures in the Coma Cluster across a wide range of luminosities (−17 > Mg > −22) and cluster-centric radii (0 < rcluster < 1.3r20... Read More about Beyond Sérsic + exponential disc morphologies in the Coma Cluster.

Modified gravity and large scale flows (2015)
Journal Article
Mould, J., Colless, M., Erdoğdu, P., Jones, H., Lucey, J., Ma, Y., …Springob, C. M. (2015). Modified gravity and large scale flows. Astrophysics and Space Science, 357(2), Article 162. https://doi.org/10.1007/s10509-015-2351-2

Reconstruction of the local velocity field from the overdensity field and a gravitational acceleration that falls off from a point mass as r −2 yields velocities in broad agreement with peculiar velocities measured with galaxy distance indicators. MO... Read More about Modified gravity and large scale flows.

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.

The HST/ACS Coma Cluster Survey – X. Nuclear star clusters in low-mass early-type galaxies: scaling relations (2014)
Journal Article
den Brok, M., Peletier, R. F., Seth, A., Balcells, M., Dominguez, L., Graham, A. W., …Weinzirl, T. (2014). The HST/ACS Coma Cluster Survey – X. Nuclear star clusters in low-mass early-type galaxies: scaling relations. Monthly Notices of the Royal Astronomical Society, 445(3), 2385-2403. https://doi.org/10.1093/mnras/stu1906

We present scaling relations between structural properties of nuclear star clusters and their host galaxies for a sample of early-type dwarf galaxies observed as part of the Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS) Coma Cluster... Read More about The HST/ACS Coma Cluster Survey – X. Nuclear star clusters in low-mass early-type galaxies: scaling relations.

The 6dF Galaxy Survey: peculiar velocity field and cosmography (2014)
Journal Article
Springob, C. M., Magoulas, C., Colless, M., Mould, J., Erdoğdu, P., Jones, D. H., …Fluke, C. J. (2014). The 6dF Galaxy Survey: peculiar velocity field and cosmography. Monthly Notices of the Royal Astronomical Society, 445(3), 2677-2697. https://doi.org/10.1093/mnras/stu1743

We derive peculiar velocities for the 6dF Galaxy Survey (6dFGS) and describe the velocity field of the nearby (z < 0.055) Southern hemisphere. The survey comprises 8885 galaxies for which we have previously reported Fundamental Plane data. We obtain... Read More about The 6dF Galaxy Survey: peculiar velocity field and cosmography.

The 6dF galaxy survey: cosmological constraints from the velocity power spectrum (2014)
Journal Article
Johnson, A., Blake, C., Koda, J., Ma, Y., Colless, M., Crocce, M., …Springob, C. (2014). The 6dF galaxy survey: cosmological constraints from the velocity power spectrum. Monthly Notices of the Royal Astronomical Society, 444(4), 3926-3947. https://doi.org/10.1093/mnras/stu1615

We present scale-dependent measurements of the normalized growth rate of structure fσ8(k, z = 0) using only the peculiar motions of galaxies. We use data from the 6-degree Field Galaxy Survey velocity sample together with a newly compiled sample of l... Read More about The 6dF galaxy survey: cosmological constraints from the velocity power spectrum.

The 6dF galaxy survey: fundamental plane data (2014)
Journal Article
Campbell, L., Lucey, J., Colless, M., Jones, D., Springob, C., Magoulas, C., …Parker, Q. (2014). The 6dF galaxy survey: fundamental plane data. Monthly Notices of the Royal Astronomical Society, 443(2), 1231-1251. https://doi.org/10.1093/mnras/stu1198

We report the 6dFGS Fundamental Plane (6dFGSv) catalogue that is used to estimate distances and peculiar velocities for nearly 9000 early-type galaxies in the local (z < 0.055) universe. Velocity dispersions are derived by cross-correlation from 6dF... Read More about The 6dF galaxy survey: fundamental plane data.

The HST/ACS Coma Cluster Survey - VII. Structure and assembly of massive galaxies in the centre of the Coma cluster (2014)
Journal Article
Weinzirl, T., Jogee, S., Neistein, E., Khochfar, S., Kormendy, J., Marinova, I., …Puzia, T. (2014). The HST/ACS Coma Cluster Survey - VII. Structure and assembly of massive galaxies in the centre of the Coma cluster. Monthly Notices of the Royal Astronomical Society, 441(4), 3083-3121. https://doi.org/10.1093/mnras/stu731

We constrain the assembly history of galaxies in the projected central 0.5 Mpc of the Coma cluster by performing structural decomposition on 69 massive (M⋆ ≥ 109 M⊙) galaxies using high-resolution F814W images from the Hubble Space Telescope (HST) Tr... Read More about The HST/ACS Coma Cluster Survey - VII. Structure and assembly of massive galaxies in the centre of the Coma cluster.

The Norma cluster (ACO 3627) - III. The distance and peculiar velocity via the near-infrared Ks-band Fundamental Plane (2014)
Journal Article
Mutabazi, T., Blyth, S., Woudt, P., Lucey, J., Jarrett, T., Bilicki, M., …Moore, S. (2014). The Norma cluster (ACO 3627) - III. The distance and peculiar velocity via the near-infrared Ks-band Fundamental Plane. Monthly Notices of the Royal Astronomical Society, 439(4), 3666-3682. https://doi.org/10.1093/mnras/stu217

While Norma (ACO 3627) is the richest cluster in the Great Attractor (GA) region, its role in the local dynamics is poorly understood. The Norma cluster has a mean redshift (zCMB) of 0.0165 and has been proposed as the ‘core’ of the GA. We have used... Read More about The Norma cluster (ACO 3627) - III. The distance and peculiar velocity via the near-infrared Ks-band Fundamental Plane.

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.

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.

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.