scholarly journals Trends in the Globular Cluster Luminosity Function of Early-Type Galaxies

2006 ◽  
Vol 651 (1) ◽  
pp. L25-L28 ◽  
Author(s):  
Andrés Jordán ◽  
Dean E. McLaughlin ◽  
Patrick Côté ◽  
Laura Ferrarese ◽  
Eric W. Peng ◽  
...  
Keyword(s):  
Globular Cluster ◽  
Luminosity Function ◽  
Early Type

scholarly journals New Insights from a Study of the Globular Cluster Systems of 60 Early-Type Galaxies

2002 ◽  
Vol 207 ◽  
pp. 229-237
Author(s):  
Arunav Kundu ◽  
Brad Whitmore
Keyword(s):  
Globular Cluster ◽  
Surface Brightness ◽  
Luminosity Function ◽  
Photometric Study ◽  
Early Type ◽  
Color Distribution ◽  
Cluster Systems ◽  
Brightness Fluctuation ◽  
Distance Indicator ◽  
Fluctuation Method

We present the results of our detailed WFPC2-based photometric study of the globular cluster systems (GCS) of over 60 elliptical and SO galaxies. Approximately 50% of the GCSs of ellipticals, and at least 15–20% of S0s reveal bimodality in the color distribution. We trace the variation in GCS properties with Hubble type and discuss the implications on the various models of galaxy (and cluster system) formation. We also provide evidence that the globular cluster luminosity function is an excellent distance indicator with an accuracy comparable to the surface brightness fluctuation method.

scholarly journals The impact of galaxy harassment on the globular cluster systems of early-type cluster dwarf galaxies

2012 ◽  
Vol 429 (2) ◽  
pp. 1066-1079 ◽  
Author(s):  
R. Smith ◽  
R. Sánchez-Janssen ◽  
M. Fellhauer ◽  
T. H. Puzia ◽  
J. A. L. Aguerri ◽  
...  
Keyword(s):  
Globular Cluster ◽  
Dwarf Galaxies ◽  
Early Type ◽  
Cluster Systems ◽  
The Impact

scholarly journals The SLUGGS survey: dark matter fractions at large radii and assembly epochs of early-type galaxies from globular cluster kinematics

2017 ◽  
Vol 468 (4) ◽  
pp. 3949-3964 ◽  
Author(s):  
Adebusola B. Alabi ◽  
Duncan A. Forbes ◽  
Aaron J. Romanowsky ◽  
Jean P. Brodie ◽  
Jay Strader ◽  
...  
Keyword(s):  
Dark Matter ◽  
Globular Cluster ◽  
Early Type

scholarly journals Extragalactic GCs in the near-infrared: genuinely old in E/S0's?

2009 ◽  
Vol 5 (S262) ◽  
pp. 315-316
Author(s):  
Ana L. Chies-Santos ◽  
Søren S. Larsen
Keyword(s):  
Globular Cluster ◽  
Stellar Population ◽  
Near Infrared ◽  
Local Group ◽  
Stellar Populations ◽  
Age Dating ◽  
Early Type ◽  
Optical Photometry ◽  
Star Forming ◽  
Optical Images

Globular cluster (GC) systems are powerful probes to study the evolutionary histories of galaxies, being tracers of major star fomation episodes (Brodie & Strader 2006). They are found around all major galaxies and are easy to see far beyond the local group. Age dating GCs therefore helps pinpoint epochs of major star forming events. Spectroscopic age dating though (Strader et al. 2005) is extremely time consuming and can only access the few brightest clusters. An alternative is to combine near-infrared (NIR) and optical photometry, and therefore have a better chance in lifting the age metallicity degeneracy than with optical colours alone. This approach relies in testing GC colours against simple stellar population (SSP) models. The first studies following this technique showed the possible existence of a high percentage of intermediate age (2-3 Gyrs) GCs in early-type galaxies known to contain old stellar populations from integrated light studies. Two strong cases can be listed: NGC 4365 (Puzia et al. 2002, Larsen et al. 2005) and NGC 5846 (Hempel et al. 2003). In the present study we combine NIR deep photometry obtained with the WHT/LIRIS instrument and archival HST/ACS optical images to determine g(F475W), z(F840LP) and K(2.2m) magnitudes and colours of GCs in 14 early-type galaxies.

scholarly journals The deep luminosity function of the globular cluster M30

1990 ◽  
Vol 350 ◽  
pp. 662 ◽  
Author(s):  
Giampaolo Piotto ◽  
Ivan R. King ◽  
Massimo Capaccioli ◽  
Sergio Ortolani ◽  
S. Djorgovski
Keyword(s):  
Globular Cluster ◽  
Luminosity Function

scholarly journals The HST large programme on NGC 6752 – III. Detection of the peak of the white dwarf luminosity function

2019 ◽  
Vol 488 (3) ◽  
pp. 3857-3865
Author(s):  
L R Bedin ◽  
M Salaris ◽  
J Anderson ◽  
M Libralato ◽  
D Apai ◽  
...  
Keyword(s):  
Globular Cluster ◽  
White Dwarf ◽  
Luminosity Function ◽  
Main Sequence ◽  
Hubble Space Telescope ◽  
Horizontal Branch ◽  
Space Telescope

ABSTRACT We report on the white dwarf (WD) cooling sequence of the old globular cluster NGC 6752, which is chemically complex and hosts a blue horizontal branch. This is one of the last globular cluster WD cooling sequences accessible to imaging by the Hubble Space Telescope. Our photometry and completeness tests show that we have reached the peak of the luminosity function of the WD cooling sequence, at a magnitude mF606W  = 29.4 ± 0.1, which is consistent with a formal age of ∼14 Gyr. This age is also consistent with the age from fits to the main-sequence turn-off (13–14 Gyr), reinforcing our conclusion that we observe the expected accumulation of WDs along the cooling sequence.

Sign in / Sign up

Export Citation Format

Share Document