Browsing Physics & Atmospheric Science by Author "Fardal, Mark A."

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  • A Bayesian Approach to Locating the Red Giant Branch Tip Magnitude (Part II); Distances to the Satellites of M31 

    Conn, Anthony R.; Ibata, Rodrigo A.; Lewis, Geraint F.; Parker, Quentin A.; Zucker, Daniel B.; Martin, Nicolas F.; McConnachie, Alan W.; Irwin, Mike J.; Tanvir, Nial; Fardal, Mark A.; Ferguson, Annette M. N.; Chapman, Scott C.; Valls-Gabaud, David (2012-09-21)
    In `A Bayesian Approach to Locating the Red Giant Branch Tip Magnitude (PART I),' a new technique was introduced for obtaining distances using the TRGB standard candle. Here we describe a useful complement to the technique ...

  • Unearthing Foundations of a Cosmic Cathedral: Searching the Stars for M33's Halo 

    Cockcroft, Robert; McConnachie, Alan W.; Harris, William E.; Ibata, Rodrigo; Irwin, Mike J.; Ferguson, Annette M. N.; Fardal, Mark A.; Babul, Arif; Chapman, Scott C.; Lewis, Geraint F.; Martin, Nicolas F.; Puzia, Thomas H. (2012-10-29)
    We use data from the Pan-Andromeda Archaeological Survey (PAndAS) to search for evidence of an extended halo component belonging to M33 (the Triangulum Galaxy). We identify a population of red giant branch (RGB) stars at ...