Welcome to Greg Taylor's Home Page
On August 15, 2005 I joined the faculty at UNM, where we have
a strong radio group including the
Long Wavelength Array.
I am also the Director of the
Center for Astrophysical Research
and Technologies. For more details, here is my vita.
What's going on in PandA (Physics and Astronomy) at UNM:
We have an active radio astronomy group within PandA.
Faculty members Jayce Dowell and Greg
Taylor are contributing to the Long Wavelength Array effort.
Adjunct faculty Ken Obenberger (AFRL), Frank Schinzel (NRAO),
and Stephen White (SNL), are also involved.
Students interested in radio astronomy and/or the LWA are encouraged
to contact one of us.
We are also active in studies of the ionosphere, space weather, and
meteors using
low frequencies. Much of this work is done in collaboration with
adjunct faculty Ken Obenberger (AFRL) and Stephen White (AFRL),
and with other researchers at AFRL. Students interested in these
research activities are encouraged to contact one of us.
My Courses:
Physics 102: Introduction to Physics Fall 2008
Astro 101: Introduction to Astronomy Fall 2016, Fall 2015, Fall 2011, Fall 2010, Fall 2009, Spring 2008, Fall 2007
Astro 2110: General Astronomy I Spring 2024, Fall 2021, 2020, 2019, 2018, 2017, 2014, 2012
Astro 2115: General Astronomy II Fall 2024, Fall 2023, Spring 2022, 2020, 2019, 2018
Astro 421: Concepts of Astrophysics I Fall 2025, Fall 2022, Fall 2013
Astro 422: Concepts of Astrophysics II Spring 2016, Spring 2014, 2012, 2010
Astro 423: Radio Astronomy Spring 2025 Spring 2021, 2017, 2015, 2013, 2011, 2009, 2007, 2006
The Long Wavelength Array (LWA)
The LWA will explore the universe
at frequencies in the range 3-88 MHz with arcsecond level resolution
and mJy level sensitivity. Currently the LWA consists of 4 stations in New
Mexico and California with two more stations under construction in Texas and
Arizona. The LWA is used to investigate local phenomena such as lightning
meteors, and the ionosphere, and as an interferometer will make crucial measurements of supernova remnants, pulsars, active galaxies and more.
The first LWA station (LWA1) is located near the VLA, and the second
NM station (LWA-SV) is located on the Sevilleta National Wildlife Refuge.
The LWA project is a collaboration led by
the University of New Mexico and includes Caltech, Texas Tech,
ASU,
the Naval Research Laboratory, the Air Force Research Laboratory,
and with assistance from NRAO and individual researchers across
the US. Funding has been provided by ONR, NSF, NASA, AFOSR and AFRL.
LWA System Engineer Joe Craig works with a team of student volunteers to
build an LWA stand. The first 38 antennas of the first LWA station were installed on Oct 18, 2009.
VLBA Sensitivity Enhancements
As recommended in
the VLBI Future Report, the VLBA is being upgraded. For more details check
out the VLBA Future
Development web pages.
Current Research Interests, Talks and Travel
Here is a Movie of the CSO 1946+708 that
we have been studying for some 16 years now. This movie shows
the 8 GHz monitoring over the last 12 years. A paper describing
the results is in the works.
We have completed a VLBI survey called the VLBA Imaging and
Polarimetry Survey (VIPS). The paper describing the
survey and copious amounts of data for 1127 sources can be found on the
VIPS web page.
GLAST has launched successfully and is performing beautifully.
We anticipate that many of our
favorite blazars imaged in VIPS and elsewhere will be detected by
GLAST. We have put together a web page describing
Radio
Observations of Active Galaxies planned during the GLAST mission.
I've been chasing after the radio afterglows from Gamma-Ray Bursts,
especially GRB 030329,
with both the VLA and
VLBA.
We have now finished a couple large VLBI surveys of Active Galactic Nuclei. Here is a link to those 300+ maps in
the PR and CJ surveys and the visibility data. My summer 2002 student, Lindsey Pollack,
has analyzed polarimetry from 182
sources in CJF. I continue to do a lot of followup
observations with the VLA,
OVRO mma, Palomar, Keck, and VLBA
telescopes.
I'm also continuing to study radio galaxy
environments, mostly through the use of Faraday rotation measure
observations with the VLA and VLBA. Surprisingly large RMs are found
in typical quasars. These results are reported in Evidence for ordered magnetic fields in the
quasar environment, Magnetic Fields
in Quasar Cores and Magnetic Fields
in Quasar Cores II. My former Ph.D. student Bob Zavala has
recently completed the study of a larger sample of Radio Galaxies,
Quasars, and BL Lacs.
Along with Martin Shepherd and Tim Pearson we have
developed automatic mapping for Difmap.
We're using the latest FITS version of Difmap and you should be too.
Here is the link to the
latest release. I recommend mapplot
for making images and overlays.
I could go on and on but you might be getting sleepy. Take a look
at my publications if you want to
know more about what I've been doing.

Last Modified on 2023 July 7
Greg Taylor
Phone: (505) 270-2929