Summer Research Poster Pitches LSSTC Intern Program Monday, August - - PowerPoint PPT Presentation

Summer Research Poster Pitches

LSSTC Intern Program

Monday, August 13, Opening Plenary

Nicole Arredondo, Grinnell College

Fermilab Center for Particle Astrophysics

Advisor: James Annis Research question: What can cross-correlation techniques tell us about galaxy-cluster membership and boost factor? Outcomes: Cross-correlations show leakage in photometric redshift catalog which impact cluster membership assignment and cluster mass calculations.

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Participant in the LSST Corporation’s Summer 2018 Undergraduate Research Program

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Rachel Buttry, Drexel University

Advisor: Gordon T. Richards Research question: How can we calculate the flux and time shifts between

• bservations of different filters?

Outcomes: The methods tested performed well for a daily observations cadence, but

• nly occasionally worked for Wide Fast

Deep (WFD) and Deep Drilling Fields (DDF).

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Participant in the LSST Corporation’s Summer 2018 Undergraduate Research Program

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Nick Easton, Case Western Reserve University

CIERA REU at Northwestern University

Advisor: Adam Miller and Aaron Geller Research question: Can we use citizen science to classify variable stars? Outcomes: Craft a machine learning algorithm using these classifications as the training set.

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Participant in the LSST Corporation’s Summer 2018 Undergraduate Research Program

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Alessa Ibrahim, Cal State Uni San Bernardino CAMPARE, Stanford University

Advisor: Daniel Gruen Research question: Can we get improved constraints on cosmology from density split statistics with dense galaxy samples, and do they follow a Poisson distribution? Outcomes: It is only at higher z-ranges and/or higher galaxy bias do galaxies follow a Poisson

• distribution. We note that the galaxy sample used

in Gruen+18 had a higher bias of b~1.5 and closely matched a Poisson distribution.

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Participant in the LSST Corporation’s Summer 2018 Undergraduate Research Program

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Galaxy Count Map Matter Density Map

Mirian Juan Estrella, Cal Poly Pomona

STEM Teacher and Researcher Program @ Cal Poly SLO

Advisor: Kevin Reil Research question: How much power leaks to the CCDs on the RTM-005? Does the thermal impedance of the RTM-005 aline to the calculated thermal impedance budget of RTM? Outcomes: It was calculated that about 2.2W is leaked to the CCDs. Percent error of calculated vs measured thermal impedance is 2%<.

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Participant in the LSST Corporation’s Summer 2018 Undergraduate Research Program

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Dylan Hilligoss, University of Delaware

Advisor: Dr. John Gizis Research question: How do different

• bserving strategies, such as the

“Pan-STARRs-like” cadence, compare with the Baseline Observing Strategy? Outcomes: When testing these cadences, it was ultimately determined that the Baseline Observing Strategy outperformed the “Pan-STARRs-like” observing strategy.

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Participant in the LSST Corporation’s Summer 2018 Undergraduate Research Program

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Advisor: James Annis Research question: When measuring the Hubble constant, does it matter if the host galaxy of the merger event is in the search galaxy catalog? Outcomes: Using the Full-sky Lognormal Astro-fields Simulation Kit and the LIGO skymap for GW170814, we show that the resulting posteriors change little as a function of galaxy bias. Which means that it doesn’t seem to matter if the host galaxy is in the galaxy catalog.

Amber Lenon, West Virginia University

Fermilab Center for Particle Astrophysics

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Participant in the LSST Corporation’s Summer 2018 Undergraduate Research Program

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Nico Linton, West Valley College

STEM Core program, SLAC National Accelerator Laboratory

Advisor: Alice Callen Research question: How do you build compressor cabinets for a refrigeration system that cools down LSST’s camera? Outcomes: We have all the necessary equipment and parts to finish assembling, as well as a procedure on how to build these cabinets safely and efficiently.

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Participant in the LSST Corporation’s Summer 2018 Undergraduate Research Program

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Dorsa Majidi, UCLA

Stanford Undergraduate Research Program

Advisor: Pat Burchat, Aaron Roodman Research question: We investigate the size and shape dependence of the LSST optical PSF on sensor height and incoming field angle. Outcomes: Our research provides important quantitative information relevant to the stringent LSST requirements on sensor flatness.

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Participant in the LSST Corporation’s Summer 2018 Undergraduate Research Program

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Kirsten Manahan, San Diego State University

STEM Teacher and Researcher Program, SLAC National Accelerator Laboratory

Advisor: Alice Callen Research question: How are RTDs constructed and what role do they play in the cryostat refrigeration system? How can we show that RTDs are a reliable source of temperature measurement in the LSST camera? Outcomes: Temperature is crucial to the LSST camera sensors and therefore RTDs are instrumental in the camera’s proper functioning. We tested the thermal resistivity of the RTDs to ensure their viability.

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Participant in the LSST Corporation’s Summer 2018 Undergraduate Research Program

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Bee Martin, Drexel University

Advisor: Gordon T. Richards Research question: How can we develop a photometric redshift estimation method that accurately predicts redshifts for quasars from LSST data? Outcomes: Our empirical-based quasar method compares favorably to DES’s template-based galaxy methods for both low and high redshift quasars.

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Participant in the LSST Corporation’s Summer 2018 Undergraduate Research Program

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Add an image here (e.g., a graph or plot, photo of equipment, simple flowchart,...).

Ethan Marx, Northwestern University

Advisor: Dr. Adam Miller Research question: What is the most accurate model for interpolating supernovae photometry? Can we use this interpolation technique to classify supernovae solely based

• n photometry?

Outcomes: Using gaussian processes is the best choice for interpolating supernovae light curves.

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Participant in the LSST Corporation’s Summer 2018 Undergraduate Research Program

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Kris Mortensen, Northwestern University

CIERA REU at Northwestern University

Advisors: Dr. Adam Miller & Professor Raffaella Margutti Research question: Should LSST be used in LIGO follow-up for kilonova discovery? Outcomes: Under the optimistic assumption that most kilonovae match binary neutron star merger GW170817, we find that LSST will play a critical role in kilonova discovery.

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Participant in the LSST Corporation’s Summer 2018 Undergraduate Research Program

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April Nuestro, Cal State U Chico

CAMPARE at Stanford University

Advisor: Aaron Roodman Research Question: How do we measure location/size/shape of an array of spots: a) to study the change in spot size, b) to verify that sensors do not alter any spots, and c) to find distance between sensors? Outcomes: A spot projector had been used to induce an image of spots detected by a charge-coupled device (CCD). Analysis of the image data was done on Python.

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Participant in the LSST Corporation’s Summer 2018 Undergraduate Research Program

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Jack O’Donnell, University of Chicago

Fermilab Center for Particle Astrophysics

Advisor: James Annis and Yuanyuan Zhang Research question: How can I efficiently predict the number of galaxy clusters in the universe, and their weak lensing profiles? Outcomes: Our C++ CosmoSIS module effectively reproduces galaxy cluster count predictions, and will be used in or influence upcoming DES Y3, Y5, and future LSST analyses.

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Participant in the LSST Corporation’s Summer 2018 Undergraduate Research Program

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Karen Perez Sarmiento, Macalester College

Fermilab Center for Particle Astrophysics

Advisor: James Annis Research question: How many binary neutron star merger (BNS) events can we expect to

• bserve during LSST Science Validation

surveys? Outcomes: LIGO expects to detect as many as 13 BNS events during the 80 days of the run. Observing a few of these events could help devise electromagnetic follow-up plans during the main survey.

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Participant in the LSST Corporation’s Summer 2018 Undergraduate Research Program

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Keziah Sheldon, Drexel University

Advisor: Gordon T. Richards Research question (motivation): Identifying bias in quasar samples→ more accurate representations of quasars. Outcomes: Independent Component Analysis (ICA) looks like a promising way to characterize the continuous properties of the quasar population (middle)

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Participant in the LSST Corporation’s Summer 2018 Undergraduate Research Program

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Noel Stasiak, West Valley College

STEM Core program, Stanford National Accelerator Lab

Advisor: Alice Callen Research question: What were the necessary steps for building Com-Cam? Outcomes: Each step was very methodical so completion took about 3 weeks. The final result was the complete structure of Com-Cam without any of the electrical components for the quadrant box.

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Participant in the LSST Corporation’s Summer 2018 Undergraduate Research Program

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