Meeting overview

CHANG-ES (Continuum Halos in Nearby Galaxies — an EVLA Survey) is a large project to observe 35 edge-on galaxies using the Expanded Very Large Array (EVLA, now known as the Karl G. Jansky Very Large Array) at two frequencies: 6 GHz (C-band) and 1.6 GHz (L-band). The publically available data and other information can be found on the CHANG-ES website.

The Wisconsin 2016 CHANG-ES Workshop will be the fourth workshop (and the first US workshop) gathering the team members and outside experts to discuss radio halos of galaxies. Previous workshops have been held at the Lorentz Center in Leiden, The Netherlands (2013), Queen's University (2014) in Kingston, Ontario (Canada), and Max Planck Institute for Radio Astronomy in Bonn, Germany (2015) .

The observations have been carried out at B, C, and D configurations in L-band and at C and D configurations in C-band. All polarization products have been obtained which provide maps of total intensity, linear polarization, and polarization angle. Since the bandwidths are large (500 MHz and 2 GHz at L-band and C-band, respectively), it is also possible to form maps of the spectral index at each band. Together, these data form the most comprehensive data set yet available for the study of nearby edge-on galaxies. Complementary Green Bank Telescope (GBT) observations currently in progress will provide information on the large scale halo emission to complete the project. Note that this website applies to VLA data only.

Our scientific goals encompass a variety of objectives involving galaxy disks, disk-halo outflows, and broader-scale halos. These include:

These results can be compared to complementary data at other wavebands so that a global and comprehensive understanding of galaxy outflows may result.

The CHANG-ES galaxies

NGC660_sdss
NGC 660
NGC891_dss
NGC 891
NGC2613_dss2
NGC 2613
NGC2683_sdssdr7
NGC 2683
NGC2820_sdssdr7
NGC 2820
NGC2992_dss2
NGC 2992
NGC3003_sdssdr7
NGC 3003
NGC3044_dss2
NGC 3044
NGC3079_dss2
NGC 3079
NGC3432_sdss
NGC 3432
NGC3448_sdssdr7
NGC 3448
NGC3556_dss2
NGC 3556
NGC3628_sdssdr7
NGC 3628
NGC3735_sdssdr7
NGC 3735
NGC3877_sdssdr7
NGC 3877
NGC4013_sdssdr7
NGC 4013
NGC4096_dss2
NGC 4096
NGC4157_sdssdr7
NGC 4157
NGC4192_sdssdr7
NGC 4192
NGC4217_dss2
NGC 4217
NGC4244_sdssdr7
NGC 4244
NGC4302_sdss
NGC 4302
NGC4388_sdssdr7
NGC 4388
NGC4438_sdssdr7
NGC 4438
NGC4565_dss2
NGC 4565
NGC4594_sdssdr7
NGC 4594
NGC4631_sdssdr7
NGC 4631
NGC4666_sdss
NGC 4666
NGC4845_sdssdr7
NGC 4845
NGC5084_dss2
NGC 5084
NGC5297_sdssdr7
NGC 5297
NGC5775_sdssdr7
NGC 5775
NGC5792_dss2
NGC 5792
NGC5907_sdssdr7
NGC 5907
UGC10288_sdss
UGC 10288

Clickable versions of these galaxies with CHANGE-ES data can be found on the CHANG-ES website . The images above were produced by Jiangtao Li (University of Michigan) for the CHANG-ES consortium using data from the Sloan Digital Sky Survey and the Digitized Sky Survey. CHANG-ES has been supported by the Natural Sciences and Engineering Research Council of Canada.

Deadlines

  • 25 May 2016: Registration open, talk/poster proposals can now be submitted.
  • 8 Jul 2016: Deadline for submission of posters/talks/registation payment.
  • 11 Jul 2016: Final Schedule.
  • 18-22 Jul 2016: Conference

Science organizing committee

Bob Benjamin

University of Wisconsin-Whitewater

George Heald

CSIRO Astronomy and Space Science

Judith Irwin

Queen's Univerity

Amanda Kepley

National Radio Astronomy Observatory

Marita Krause

Max-Planck-Institut für Radioastronomie