Now showing items 1-11 of 11

    • Galaxy and Mass Assembly (GAMA) : maximum-likelihood determination of the luminosity function and its evolution 

      Loveday, J.; Norberg, P.; Baldry, I. K.; Bland-Hawthorn, J.; Brough, S.; Brown, M. J. I.; Driver, S. P.; Kelvin, L. S.; Phillipps, S. (2015-08-01) - Journal article
      We describe modifications to the joint stepwise maximum-likelihood method of Cole in order to simultaneously fit the Galaxy and Mass Assembly II galaxy luminosity function (LF), corrected for radial density variations, and ...
    • Galaxy And Mass Assembly (GAMA) : stellar mass functions by Hubble type 

      Kelvin, Lee S.; Driver, Simon P.; Robotham, Aaron S. G.; Taylor, Edward N.; Graham, Alister W.; Alpaslan, Mehmet; Baldry, Ivan; Bamford, Steven P.; Bauer, Amanda E.; Bland-Hawthorn, Joss; Brown, Michael J. I.; Colless, Matthew; Conselice, Christopher J.; Holwerda, Benne W.; Hopkins, Andrew M.; Lara-Lopez, Maritza A.; Liske, Jochen; Lopez-Sanchez, Angel R.; Loveday, Jon; Norberg, Peder; Phillipps, Steven; Popescu, Cristina C.; Prescott, Matthew; Sansom, Anne E.; Tuffs, Richard J. (2014-10-21) - Journal article
      We present an estimate of the galaxy stellar mass function and its division by morphological type in the local (0.025 < z < 0.06) Universe. Adopting robust morphological classifications as previously presented (Kelvin ...
    • Galaxy And Mass Assembly (GAMA) : trends in galaxy colours, morphology, and stellar populations with large-scale structure, group, and pair environments 

      Alpaslan, Mehmet; Driver, Simon; Robotham, Aaron S. G.; Obreschkow, Danail; Andrae, Ellen; Cluver, Michelle; Kelvin, Lee S.; Lange, Rebecca; Owers, Matt; Taylor, Edward N.; Andrews, Stephen K.; Bamford, Steven; Bland-Hawthorn, Joss; Brough, Sarah; Brown, Michael J. I.; Colless, Matthew; Davies, Luke J. M.; Eardley, Elizabeth; Grootes, Meiert W.; Hopkins, Andrew M.; Kennedy, Rebecca; Liske, Jochen; Lara-López, Maritza A.; López-Sánchez, Ángel R.; Loveday, Jon; Madore, Barry F.; Mahajan, Smriti; Meyer, Martin; Moffett, Amanda; Norberg, Peder; Penny, Samantha; Pimbblet, Kevin A.; Popescu, Cristina C.; Seibert, Mark; Tuffs, Richard (2015-08-11) - Journal article
      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 GAMA catalogues of large-scale structure, ...
    • GAMA/G10-COSMOS/3D-HST : evolution of the galaxy stellar mass function over 12.5 Gyr 

      Wright, A. H.; Driver, S. P.; Robotham, A. S. G. (2018-11-01) - Journal article
      Using a combined and consistently analysed GAMA, G10-COSMOS, and 3D-HST data set, we explore the evolution of the galaxy stellar mass function over lookback times tL ∈ [0.2, 12.5] h70-1 Gyr. We use a series of volume-limited ...
    • The low-mass content of the massive young star cluster RCW 38 

      Mužić, Koraljka; Schödel, Rainer; Scholz, Alexander; Geers, Vincent C.; Jayawardhana, Ray; Ascenso, Joana; Cieza, Lucas A. (2017-11-01) - Journal article
      RCW 38 is a deeply embedded young (∼1 Myr), massive star cluster located at a distance of 1.7 kpc. Twice as dense as the Orion nebula cluster, orders of magnitude denser than other nearby star-forming regions and rich in ...
    • Mass functions, luminosity functions, and completeness measurements from clustering redshifts 

      Bates, Dominic J.; Tojeiro, Rita; Newman, Jeffrey A.; Gonzalez-Perez, Violeta; Comparat, Johan; Schneider, Donald P.; Lima, Marcos; Streblyanska, Alina (2019-07) - Journal article
      This paper presents stellar mass functions and i-band luminosity functions for Sloan Digital Sky Survey (SDSS) galaxies with i < 21 using clustering redshifts. From these measurements, we also compute targeting completeness ...
    • A new method for classifying galaxy SEDs from multiwavelength photometry 

      Wild, Vivienne; Almaini, Omar; Cirasuolo, Michele; Dunlop, Jim; McLure, Ross; Bowler, Rebecca; Ferreira, Joao; Bradshaw, Emma; Chuter, Robert; Hartley, Will (2014-05-11) - Journal article
      We present a new method to classify the broad-band optical–near-infrared spectral energy distributions (SEDs) of galaxies using three shape parameters (super-colours) based on a principal component analysis of model SEDs. ...
    • The stellar-to-halo mass relation of GAMA galaxies from 100 deg2 of KiDS weak lensing data 

      Uitert, Edo van; Cacciato, Marcello; Hoekstra, Henk; Brouwer, Margot; Sifón, Cristóbal; Viola, Massimo; Baldry, Ivan; Bland-Hawthorn, Joss; Brough, Sarah; Brown, M. J. I.; Choi, Ami; Driver, Simon P.; Erben, Thomas; Heymans, Catherine; Hildebrandt, Hendrik; Joachimi, Benjamin; Kuijken, Konrad; Liske, Jochen; Loveday, Jon; McFarland, John; Miller, Lance; Nakajima, Reiko; Peacock, John; Radovich, Mario; Robotham, A. S. G.; Schneider, Peter; Sikkema, Gert; Taylor, Edward N.; Kleijn, Gijs Verdoes (2016-07-01) - Journal article
      We study the stellar-to-halo mass relation of central galaxies in the range 9.7 < log 10(M*/h− 2 M⊙) < 11.7 and z < 0.4, obtained from a combined analysis of the Kilo Degree Survey (KiDS) and the Galaxy And Mass Assembly ...
    • Substellar Objects in Nearby Young Clusters (SONYC) IX : the planetary-mass domain of Chamaeleon-I and updated mass function in Lupus-3 

      Mužić, Koraljka; Scholz, Alexander; Geers, Vincent C.; Jayawardhana, Ray (2015-09-10) - Journal article
      Substellar Objects in Nearby Young Clusters—SONYC—is a survey program to investigate the frequency and properties of substellar objects in nearby star-forming regions. We present new spectroscopic follow-up of candidate ...
    • Substellar objects in nearby young clusters. VII. The substellar mass function revisited 

      Scholz, Alexander; Geers, Vincent; Clark, Paul; Jayawardhana, Ray; Muzic, Koraljka (2013-10-01) - Journal article
      The abundance of brown dwarfs (BDs) in young clusters is a diagnostic of star formation theory. Here we revisit the issue of determining the substellar initial mass function (IMF) based on a comparison between NGC 1333 and ...
    • Very low-mass stars and brown dwarfs in Upper Scorpius using Gaia DR1 : mass function, disks, and kinematics 

      Cook, Neil J.; Scholz, Aleks; Jayawardhana, Ray (2017-12) - Journal article
      Our understanding of the brown dwarf population in star-forming regions is dependent on knowing distances and proper motions and therefore will be improved through the Gaia space mission. In this paper, we select new samples ...