506 citations · 2.3k across the 32 of their papers we have counts for
8 papers · 1 filter
Galaxy And Mass Assembly (GAMA): Testing galaxy formation models through the most massive galaxies in the Universe
P. Oliva-Altamirano, S. Brough, C. Lidman +26
We have analysed the growth of Brightest Group Galaxies and Brightest Cluster Galaxies (BGGs/BCGs) over the last 3 billion years using a large sample of 883 galaxies from the Galax…
Galaxy and Mass Assembly (GAMA): Fine filaments of galaxies detected within voids
Mehmet Alpaslan, Aaron S. G. Robotham, Danail Obreschkow +15
Based on data from the Galaxy and Mass Assembly (GAMA) survey, we report on the discovery of structures that we refer to as `tendrils' of galaxies: coherent, thin chains of galaxie…
Evidence for galaxies being pre-processed before accreted into clusters
Smriti Mahajan
I use the spectroscopic data for galaxies in and around nearby (0.02<z<0.06) X-ray bright galaxy clusters, to show that the incidence of k+a (or post-starburst) galaxies (EW(Ha)<2…
Plunging fireworks: Why do infalling galaxies light up on the outskirts of clusters?
Smriti Mahajan, Somak Raychaudhury, Kevin A. Pimbblet
(abridged)Integrated star formation rate (SFR) and specific star formation rate (sSFR), derived from the spectroscopic data obtained by SDSS DR4 are used to show that the star form…
The velocity modulation of galaxy properties in and near clusters: quantifying the decrease in star formation in backsplash galaxies
Smriti Mahajan, Gary A. Mamon, Somak Raychaudhury
The efficiency of recent star formation (SF) in galaxies increases with increasing projected distance from the centre of a cluster out to several times its virial radius (R_v). Usi…
The evolution of dwarf galaxies in the Coma supercluster
Smriti Mahajan, Chris P. Haines, Somak Raychaudhury
We employ spectroscopic and photometric data from SDSS DR7, in a 500 sq degree region, to understand the evolution of dwarf (~M*+2<M_z<M*+4) galaxies in the Coma supercluster (z=0.…
Star formation, starbursts and quenching across the Coma supercluster
Smriti Mahajan, Chris P. Haines, Somak Raychaudhury
We analyse Spitzer MIPS 24micron observations, and SDSS (DR7) optical broadband photometry and spectra, to investigate the star formation (SF) properties of galaxies residing in th…
Red star-forming and blue passive galaxies in clusters
Smriti Mahajan, Somak Raychaudhury
We explore the relation between colour and specific star formation rate (derived from optical spectra obtained by SDSS DR4) of over 6,000 galaxies (M_r<=-20.5) in and around low re…