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Science Collaboration Mentors

Transients/variable stars (TVS)

Federica Bianco

She/Her

Contact | Website

Federica works on data-driven inference in the time domain on problems in astrophysics, urban science, as well as other complex systems that can be studied through interdisciplinary data-driven approaches.

Rosaria/Sara Bonito

She/Her

Contact | Website

I mainly work on young stellar objects, to investigate their variability at all the time scales, from hours to years. In the context of TVS SC interest, I aim at probing stellar variability, discriminating among different processes, e.g. accretion bursts (also including Exors), warp disk, extinction, etc. These topics have been also explored for the optimization of the Rubin LSST Survey Strategy, e.g. in Bonito & Hartigan et al. 2018 and Bonito & Venuti et al. 2021.

Michael Coughlin

He/Him

Contact | Website

My primary interests involve gravitational waves and their optical counterparts, in particular using kilonovae as probes for the neutron star equation of state and expansion rate of the Universe. Within TVS, I am involved with the survey strategy and software groups, with a focus on technology to detect fast transients with Rubin.

Leo Girardi

He/Him

Contact | Website

My main interests are in the fields of stellar evolution and stellar populations in the Local Group, essentially any aspect that involves the star counts -- for instance inferences on the MW distribution of stellar mass and its star formation history, constraints to stellar evolution from star clusters, binaries and the distribution of their properties, statistics of very cool stars in the AGB, etc.

Kelly Hambleton

She/Her

Contact | Website

KH is the primary contact for the Pulsating Stars Subgroup and is interested in all pulsating stars from RR Lyrae stars to gamma Dor stars to solar-like oscillators. One of her main goals within TVS, and a primary objective of her sub-group, is to generate an updated H-R diagram for pulsating stars through the eyes of Rubin LSST. 

Saurabh Jha

He/Him

Contact | Website

Supernovae; interest in both astrophysics of supernovae (particularly white-dwarf supernovae) via TVS, and the use of SN Ia for cosmology via DESC.

Andrej Prsa

He/Him

Contact | Website

I am interested in transients and variables in general, and eclipsing binaries in particular. I have been a member of the TVS collaboration for over 6 years and intend to fortify the impact that Rubin observatory will have on our science. I would love to work with postdocs interested in computational aspects of Rubin: modeling binary populations, their distribution, extracting astrophysical data from target light curves and interpreting the results.

Markus Rabus

He/Him

Contact | Website

Currently, I am assessing the performance of the LSST pipeline in crowded fields, therefore I analyze DECam images with the pipeline. During the early commissioning phase, I plan to provide observing support and evaluate the photometric and astrometric quality of the commissioning images. My aim is to understand the different noise components and correlations present in the data set, like e.g., systematic noise in the time series. I am interested in evaluating the astrometric errors and understanding their limitations with respect to high proper motion objects.

Rachel Street

She/Her

Contact | Website

My scientific interests focus is on stellar transients, particularly microlensing, exoplanets and a range of stellar science.  I am looking forward to exploring the Milky Way's hidden populations of low-mass stars, brown dwarfs, planets and black holes identified from their lensing signatures.  LSST will be groundbreaking in this field, delivering a deep and wide survey of these populations across different galactic environments where they have previously been inaccessible.  We will be able to determine their mass and spatial distributions, telling us a great deal about their formation and