506 citations · 2.3k across the 32 of their papers we have counts for
33 papers
An AstroSat/UVIT study of galaxies in the cluster Abell 2199
Smriti Mahajan, Kulinderpal Singh, Somak Raychaudhury
(abridged) We present the newly acquired data for an AstroSat/UVIT field centered on a face-on spiral starburst galaxy UGC 10420, located in the cluster Abell 2199. We have analyse…
Supermassive black holes in a mass-limited galaxy sample
Zachary Byrne, Michael J. Drinkwater, Holger Baumgardt +8
The observed scaling relations between supermassive black hole masses and their host galaxy properties indicate that supermassive black holes influence the evolution of galaxies. H…
Dashing through the cluster: An X-ray to radio view of UGC 10420 undergoing ram-pressure stripping
Smriti Mahajan, Kulinder Pal Singh, Juhi Tiwari +1
We present multi-wavelength data and analysis, including new FUV AstroSat/UVIT observations of the spiral galaxy UGC 10420 (z=0.032), a member of the cluster Abell 2199. UGC 10420…
Deepest far ultraviolet view of a central field in the Coma cluster by AstroSat UVIT
Smriti Mahajan, Kulinder Pal Singh, Joseph E. Postma +3
We present analysis of the far ultraviolet (FUV) emission of sources in the central region of the Coma cluster (z=0.023) using the data taken by the UVIT aboard the multi-wavelengt…
Galaxy And Mass Assembly (GAMA): Data Release 4 and the z < 0.1 total and z < 0.08 morphological galaxy stellar mass functions
Simon P. Driver, Sabine Bellstedt, Aaron S. G. Robotham +67
In Galaxy And Mass Assembly Data Release 4 (GAMA DR4), we make available our full spectroscopic redshift sample. This includes 248682 galaxy spectra, and, in combination with earli…
Study of galaxies on large-scale filaments in simulations
Ankit Singh, Smriti Mahajan, J. S. Bagla
We use data from the Evolution and Assembly of GaLaxies in their Environment (EAGLE) cosmological simulation to study properties of galaxies in the cosmic web. Galaxies become more…
Age and Metallicity of galaxies in different environments of the Coma supercluster
Juhi Tiwari, Smriti Mahajan, Kulinder Pal Singh
We analyse luminosity-weighted ages and metallicity (Z) of galaxies in a continuous range of environments, i.e. clusters, filaments and voids prevalent in the Coma supercluster ($\…
Galaxy And Mass Assembly (GAMA): Properties and evolution of red spiral galaxies
Smriti Mahajan, Kriti Kamal Gupta, Rahul Rana +10
We use multi-wavelength data from the Galaxy and Mass Assembly (GAMA) survey to explore the cause of red optical colours in nearby (0.002<z<0.06) spiral galaxies. We show that the…
The Star Formation Reference Survey III: A Multi-wavelength View of Star Formation in Nearby Galaxies
Smriti Mahajan, M. L. N. Ashby, S. P. Willner +5
We present multi-wavelength global star formation rate (SFR) estimates for 326 galaxies from the Star Formation Reference Survey (SFRS) in order to determine the mutual scatter and…
Ultraviolet and optical view of galaxies in the Coma Supercluster
Smriti Mahajan, Ankit Singh, Devika Shobhana
The Coma supercluster (100 Mpc) offers an unprecedented contiguous range of environments in the nearby Universe. In this paper we present a catalogue of spectroscopically confirmed…
Galaxy And Mass Assembly (GAMA): The effect of galaxy group environment on active galactic nuclei
Yjan A. Gordon, Kevin A. Pimbblet, Matt S. Owers +9
In galaxy clusters, efficiently accreting active galactic nuclei (AGN) are preferentially located in the infall regions of the cluster projected phase-space, and are rarely found i…
The SAMI Galaxy Survey: The cluster redshift survey, target selection and cluster properties
M. S. Owers, J. T. Allen, I. Baldry +40
We describe the selection of galaxies targeted in eight low redshift clusters (APMCC0917, A168, A4038, EDCC442, A3880, A2399, A119 and A85; ) as part of the Sydn…
Galaxy and Mass Assembly (GAMA): Formation and Growth of Elliptical Galaxies in the Group Environment
Simon Deeley, Michael J. Drinkwater, Daniel Cunnama +16
There are many proposed mechanisms driving the morphological transformation of disk galaxies to elliptical galaxies. In this paper, we determine if the observed transformation in l…
The SAMI galaxy survey: Galaxy Interactions and Kinematic Anomalies in Abell 119
Sree Oh, Sukyoung K. Yi, Luca Cortese +25
Galaxy mergers are important events that can determine the fate of a galaxy by changing its morphology, star-formation activity and mass growth. Merger systems have commonly been i…
The SAMI Galaxy Survey: the link between angular momentum and optical morphology
L. Cortese, L. M. R. Fogarty, K. Bekki +34
We investigate the relationship between stellar and gas specific angular momentum , stellar mass and optical morphology for a sample of 488 galaxies extracted from the S…
Galaxy And Mass Assembly (GAMA): growing up in a bad neighbourhood - how do low-mass galaxies become passive?
L. J. M. Davies, A. S. G. Robotham, S. P. Driver +13
Both theoretical predictions and observations of the very nearby Universe suggest that low-mass galaxies (log[M/M]<9.5) are likely to remain star-forming unl…
Galaxy And Mass Assembly (GAMA): Panchromatic Data Release (far-UV --- far-IR) and the low-z energy budget
Simon P. Driver, Angus H. Wright, Stephen K. Andrews +60
We present the GAMA Panchromatic Data Release (PDR) constituting over 230deg of imaging with photometry in 21 bands extending from the far-UV to the far-IR. These data compleme…
H-ATLAS/GAMA and HeViCS - Dusty Early-Type Galaxies in Different Environments
N. K. Agius, S. di Serego Alighieri, S. Viaene +20
The Herschel Space Observatory has had a tremendous impact on the study of extragalactic dust. Specifically, early-type galaxies (ETG) have been the focus of several studies. In th…
Galaxy And Mass Assembly (GAMA): Trends in galaxy colours, morphology, and stellar populations with large scale structure, group, and pair environments
Mehmet Alpaslan, Simon Driver, Aaron S. G. Robotham +32
We explore trends in galaxy properties with Mpc-scale structures using catalogues of environment and large scale structure from the Galaxy And Mass Assembly (GAMA) survey. Existing…
The SAMI Galaxy Survey: Towards a unified dynamical scaling relation for galaxies of all types
L. Cortese, L. M. R. Fogarty, I. -T. Ho +27
We take advantage of the first data from the Sydney-AAO Multi-object Integral field (SAMI) Galaxy Survey to investigate the relation between the kinematics of gas and stars, and st…
Galaxy And Mass Assembly (GAMA): The unimodal nature of the dwarf galaxy population
Smriti Mahajan, Michael J. Drinkwater, S. Driver +9
In this paper we aim to (i) test the number of statistically distinct classes required to classify the local galaxy population, and, (ii) identify the differences in the physical a…
Galaxy And Mass Assembly (GAMA): Galaxy close-pairs, mergers, and the future fate of stellar mass
A. S. G. Robotham, S. P. Driver, L. J. M. Davies +28
We use a highly complete subset of the GAMA-II redshift sample to fully describe the stellar mass dependence of close-pairs and mergers between 10^8 Msun and 10^12 Msun. Using the…
The SAMI Galaxy Survey: instrument specification and target selection
J. J. Bryant, M. S. Owers, A. S. G. Robotham +54
The SAMI Galaxy Survey will observe 3400 galaxies with the Sydney-AAO Multi-object Integral-field spectrograph (SAMI) on the Anglo-Australian Telescope (AAT) in a 3-year survey whi…
The SAMI Galaxy Survey: Cubism and covariance, putting round pegs into square holes
R. Sharp, J. T. Allen, L. M. R. Fogarty +46
We present a methodology for the regularisation and combination of sparse sampled and irregularly gridded observations from fibre-optic multi-object integral-field spectroscopy. Th…