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1 and the University of Wisconsin Milwaukee David Kaplan (University of Wisconsin, Milwaukee) Leonard E. Parker Center for Gravitation, Cosmology & Astrophysics
2 The Milwaukee Perspective +
3 Where is Wisconsin?
4 Where is Milwaukee?
5 So you are at the University of Wisconsin, right?
6 Endowment: $2.2B Budget: $580M Undergraduates: 1001 Graduate students: 1254 Faculty: 300 Endowment: $200M Budget: $545M Undergraduates: 23,031 Graduate students: 4782 Faculty: 1623 (all to scale) Endowment: $2.5B Budget: $2.9B Undergraduates: Graduate students: Faculty: 2200
7 Leonard E. Parker Center for Gravitation, Cosmology & Astrophysics Center within UWM Physics Dept 7 faculty, ~40 people total
8 UWM GROWTH Activities Grad Students EM: Radio time domain GW: LIGO EMGW: CLU Education (talks on Wed) Chaoran Zhang Hong Qi Postdocs Patrick Brady David Kaplan Angie van Sistine Joe Swiggum
9 Murchison Widefield Array Tiles Dipoles Frequency Bandwidth Resolution Max baseline FOV Sensitivity Instrument Capabilities: Tingay et al. 2013, PASA, 30, 7 Science Prospects: Bowman et al. 2013, PASA, 30, MHz 30 MHz >1 arcmin 3 km >1000 deg2 ~10 mjy
10
11 Based on published sub-national region
12 MWA Time-Domain Blind searches GW/neutrino followup Other triggered followup (respond in <16s) Flare stars & exoplanets Pulsars AGN variability Scintillation (ionosphere, interplanetary, interstellar) X-ray binaries André Offringa, Natasha Hurley-Walker, & MWA Commissioning Team
13 Dec (J2000) Kaplan+ in prep 12 h RA (J2000) 9 h 6 h 3 h Abbot+ '16
14 MWA Upgrade MWA has $2.8M expansion for 2016: Double baselines Improve imaging by factor of 5-10 Pack the core Pulsars + EoR Merge into SKA Photo: Gregory Rowbotham (ICRAR)
15 ASKAP ASKAP = Australian Square Kilometer Array Pathfinder SKA Survey telescope prototype: 36 * 12m antenna 700 MHz GHz Each has phased-array feed (PAF): ~36 beams/antenna 30 deg 2 FOV
16 ASKAP/VAST VAST=Variables & Slow Transients Key Project Mix of sky coverage, cadence, & depth Murphy et al. 2013, PASA, 30, deg2 image w/ ASKAP testbed Early science: 2016B 12 antennas, 300 MHz, 36 beams, Tsys~60 K (MkII) Mostly commensal for transients + Dedicated followup of LIGO transients (O2+ ) Full VAST could see ~10 NS-NS merger events with ~arcsec localization (Hotokezaka+ in prep) background rate is << optical, because sky is so boring, but care still needed (e.g., Williams & Berger 16;Vedanthan+ 16) Trade sky coverage vs. depth w/ VLASS: Are there enough transients to justify rapid cadence? Heywood, et al.
17 UWM LIGO Group
18 EMGW: CLU (Census of the Local Universe) Goal: A complete galaxy catalog out to 200 Mpc (along with Kasliwal, Cook, ) Scientific projects include: Source catalog for electromagnetic followup of gravitational wave events Abbot+2016 (Localization and EM Follow-up) Measurement of the local Hubble constant Challenges: calibration, classification, completeness, UWM Postdoc Angie van Sistine
19 iptf H Survey: Scientific Goals Catalog galaxies out to 200 Mpc Major contributor to CLU Assisting transient surveys (e.g., ZTF LSST, VLASS, ) Compare star formation rate (SFR) indicators H vs UV, IR, Better constraints in low SFR regime SFR Density at z=0 And many more 15,000 sq. deg 4 narrowband filters Out to z~0.048 (~200 Mpc) Observations complete by end of Mpc 200 Mpc
20 Measuring Hubble constant with GW and Galaxy Catalog Statistical measurement of H 0 using properties of galaxies within GW error region Need robust, complete, well-characterized catalog of galaxies: CLU Grad student Hong Qi
21 Uniqueness & Completeness of CLU Total Entries Queriable by Name in NED Unique Galaxies Pure Unique Entries Duplicate Entries CLU , , , , ,471 CLU , , , , ,544 Machine-learning tests Black points are unique entires, gray points are duplicate entries. Green line is the decision boundary, entries in the shaded area are determined to be unique. Grad students Hong Qi and Chaoran Zhang
22 UWM Challenges Physics Dept: teach about Astronomy Techniques Lingo Sociology Solution: GROWTH/PTF/ZTF summer schools and internships Benefits: teach astronomers about physics methodology
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