This Dark Energy Spectroscopic Instrument (DESI) project will explore this expansion, driven by a mysterious property known as dark energy, in great detail. 11/2019: S5-HVS1: Discovery of 1700 km/s star from Galactic center, covered by NYTimes, Carnegie Observatories. We are able to test that with our DES measurements. New results from Dark Energy Survey supernovae address these and other questions. Problems with classical methods for extracting information from the full spectra I was a Phone: +1 6308406370 Email 1 ... History and philosophy of astronomy, 1.5 - Publications, bibliography, 1.6 - Astronomy Education, 1.9 - Astronomy … 01/06/2015: Fermilab Today: One of the best Supernova nights in DES while I was the run manager. Clusters of galaxies are even bigger groups of hundreds of galaxies, gravitationally bound. For this, DES looked repeatedly at the same patches of the sky, waiting for supernovae to explode! Meanwhile, I hold a joint appointment in the Department of Astrophysical Sciences at Princeton University as a joint Carnegie-Princeton Fellow. or further apart? In one there is a very bright extra source - a supernova!We also measure Baryonic Acoustic Oscillations. Giants of the Universe 🦖Some galaxies aggregate in groups: our own galaxy the Milky Way and the Andromeda galaxy, for instance are part of the Local Group. Will it fly apart, tearing even atoms into bits? ... Ting Li . 10/31/2014: An aTmCam story featured on PHYS.ORG, Department of Astrophysical Sciences at Princeton University, Fermilab Center for Particle Astrophysics, Southern Stellar Stream Spectroscopic Survey, Dark Energy Spectroscopic Instrument (DESI), Munnerlyn Astronomical Instrumentation Lab, Discovery of 1700 km/s star from Galactic center. Labors of the Lab featured … Labors of the Lab Features Dan Nagasawa July 15, 2015. Food system collapse incurs major societal costs that may extend across generations. We measure this distance 📏 at different times in the history of the universe to infer how the expansion evolved! How weird is our Universe? Ting Li Graduate Student Munnerlyn Lab 207 (979) 845-6140. Fermilab Center for Particle Astrophysics during 2016-2019. But the results indicate that this multiprobe approach could allow surveys in the 2020s to improve such constraints by orders of magnitude, possibly bringing us close to solving the dark energy puzzle. Another approach observes the X ray light coming from the super hot gas in the cluster or by using the Cosmic Microwave Background as a backdrop upon which the clusters leave their imprint 🔭 . Curriculum Vita (Latest Update: Dec 15, 2019), Publications on ADS(Latest Update: Dec 15, 2019) The video shows two images of a nearby galaxy called M82...can you spot the difference? When the Universe cooled enough for photons to decouple from protons and electrons, a certain physical scale (related to the distance these sound waves had travelled) was “frozen” into the distribution of matter. )…We’re at the stage of dotting our eyes and crossing our t’s for our results : running our robustness tests and evaluating consistency internally and with external datasets - it’s all pretty exciting 🤩! How do we estimate the mass of these clusters? But it turns out it is very difficult to measure distances on cosmological scales in an expanding space time...things get weird…👾👾We have a couple of ways to do it:Supernovae are exploding stars 🎆🎇🎆🎇, releasing tons of energy, they can even outshine an entire galaxy! It’s nature, write telescope scientist Timothy Abbott from the Cerro Tololo Inter-American Observatory, in Chile, and colleagues, “is unknown, and understanding its properties and origin is one of the principal challenges in modern physics”. )…, Exploding stars and cosmic rulers 💥📐, Day 34: Measuring the Universe’s expansion history, Scientists Leverage HPC and AI to Wrangle the ‘Galaxy Zoo’, Three sky surveys completed in preparation for Dark Energy Spectroscopic Instrument, Multiple Measurements close in on Dark Energy, Viewpoint: Dark Energy Faces Multiple Probes, Supernovae, Dark Energy, and the Fate of Our Universe. Draft version October 23, 2020 Typeset using LATEX RNAAS style in AASTeX63 Preliminary Target Selection for the DESI Milky Way Survey (MWS) Carlos Allende Prieto,1,2 Andrew P. Cooper,3 Arjun Dey,4 Boris T. G ansicke,5 Sergey E. Koposov,6,7,8 Ting Li… Heath Shipley ... Astronomy … We call a certain subset of  them standard candles: we know roughly how much light they release, so their observed brightness tells us how far away they are. If you weren’t a scientist, what would your dream job be? Questions like these motivate the current and next generations of surveys that aim to map out ever larger volumes of the Universe, using a wide variety of probes to constrain the properties of dark energy. Learn more. 5 years ago. As a child peering through her toy telescope, Texas A&M University graduate student Ting Li was fascinated by the Moon and constellations – not so much by their cosmic beauty, but about … … 11/25/2019 - 11/25/2019. @article{Tollerud2019SustainingCS, title={Sustaining Community-Driven Software for Astronomy in the 2020s}, author={E. J. Tollerud and A. M. Smith and A. Price-Whelan and K. Cruz and D. Norman and … This is the advice I would give to the students who might be considering going to graduate school and pursuing a career in scientific research.
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