Lynne Hillenbrand at Caltech


Lynne Hillenbrand California Institute of Technology


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Research

Primary Research Interests (Observational Star Formation)

Young Stellar Clusters: cluster shapes, sizes, and densities; the time sequence of star formation as a function of cloud/cluster position; stellar age spreads in clusters; the initial mass function; relationships between cluster density and mass of the most massive star; cluster dynamics.
Herbig Ae/Be Stars: circumstellar dust and gas; accretion; pre-main sequence evolution.
Accretion Disks: disk sizes, masses, accretion rates, and survival times as a function of stellar mass; constraints on planet formation timescales; magnetospheric inner-disk holes; optical/near-infrared variability.
Post-Accretion Disks: timescales for gas giant and terrestrial planet formation.
Stellar Angular Momentum: rotation trends with stellar mass and age; relationship to disk evolution.

Other interests:


A few ongoing projects: research on protoplanetary disk evolution research on debris disk evolution research on the initial mass function research on photometric variability research on Protostars research on the North American Nebula research on the Orion Nebula Cluster research on Herbig Ae/Be stars and associated clusters random discoveries	what is a planet?

Courses

Ay 20 (last taught 2002)
Ay 31 (Spring 2009)
Ay 101 (Fall 2008)
Ay 141 (last taught 2004)
Ay 218 (Spring 2009)

Time:

Phenomena:

Weather:

the view from mt hamilton, around mt wilson's 100" telescope, downtown los angeles (yuk), and around the summit of mauna kea
concam all-sky cameras
quick weather: satellite maps, radar , jetstream analysis, and forecasts
weather summary for major north american observatories
detailed weather info from the NWS for los angeles area, san diego area, san francisco bay area, and hawaii
university of hawaii weather page and mauna kea weather center

Other: