May
2022

Our new paper on isolated field elliptical galaxies has been accepted for publication in PASA

We present a catalogue of isolated field elliptical (IfE) galaxies drawn from the W1 field of the Canada-France-Hawaii Telescope Legacy Survey (CFHTLS). 228 IfEs were identified from a flux-limited (r<21.8) galaxy catalogue which corresponds to a density of 3 IfE/sq.deg. For comparison we consider a sample of elliptical galaxies living in dense environments, based on identification of the brightest cluster galaxies (BGCs) in the same survey. Using the same dataset for the comparison sample ensures a uniform selection, including in the redshift range as IfEs (i.e. 0.1 < z < 0.9). A comparison of elliptical galaxies in different environments reveals that IfEs and BCGs have similar behaviours in their colours, star formation activities, and scaling relations of mass-size and size-luminosity. IfEs and BCGs have similar slopes in the scaling relations with respect to cluster ellipticals within the−24≤Mr≤−22" role="presentation" style="font-size: 16px; display: inline-table; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; caret-color: rgb(93, 93, 93); color: rgb(93, 93, 93); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; position: relative;">−24≤Mr≤−22−24≤Mr≤−22magnitude and10.2<log(M∗/M⊙)≤12.0" role="presentation" style="font-size: 16px; display: inline-table; line-height: normal; word-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; padding: 0px; margin: 0px; caret-color: rgb(93, 93, 93); color: rgb(93, 93, 93); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; position: relative;">10.2<log(M∗/M⊙)≤12.010.2<log(M∗/M⊙)≤12.0mass ranges. Three IfEs identified in this study can be associated with fossil groups found in the same survey area which gives clues for future studies.