Adam Block- Advanced Observing
Tom Teters- Project Proposer
This is a
group of six interacting galaxies on the Serpens Caput-Hercules border,
taken with a 16" Meade
SCT. Five of the galaxies exhibit an expected ~4400 mi/s recessional speed for objects at ~235 million light
years. While one galaxy, the Seyfert spiral ('e') has an aberrant red-shift of 19,993 mi/s. It appears to be in
physical contact with the group. There are unknown objects between it and the 'b' component. My thinking is
that these could be dynamically stripped globular clusters from the two galaxies. I have not been able to get
images with enough resolution to distinguish characteristics. Also the 'd' & 'd1' component have no apparent
spirality and and a disruption in one end. Dust lane or passage evidence?
Adam wrote: "So,
these images are at f/10 no focal reducer, no filters.
If these images do not provide
enough... or at least new data... Next spring will most likely be the next opportunity. We have started the
public programs- so the early evening times are taken. Ok, here is what I got- Apparently at f/10 I can
not T&A (track & accumulate) for more than 5 minutes- compared to 15 with the focal reducer in. I took two
images- and then combined those. (TT: Aug 28, 2003, I used RegiStax 2 to clean up the 3rd image) So
attached here are 3 images. I will continue to bug Meade...
After working out a few bugs, it's now possible to take a guided exposure (yes, with the autoguider) for up
to 15 minute integration times! This work is still being done with the f/6.3 focal reducer..."
Adam is on the verge of being able
to get the data I was originally looking for. Adam said, "As you know,
your object is unfortunately not well placed in the sky. Spring is still looking like the first opportunity." So I
am awaiting with anticipation the spring months when Hercules/Serpans-Caput is high in the sky around 10 pm
Sometime later Adam took i upon himself to reinvestigate and image this object.
Hubble Space Telescope Pre-Co-Star Images
The image shows the Seyfert, the bright spots in the spiral component 'e' on the left, are most
probably Seyfert regions. The other component 'b' on the left, in the area I'm interested in studying.
These images are from Sulentic and Keel of U. of Alabama-Tuscaloosa. I hope this group will be re-imaged
by the HST, with Co-Star optics. It was in 2003 by English, et al from Canada. Images to be included:
SkyView images RoSat X-ray image any others I can 'dig' up, but they are RARE!
In using the FitsView software I was able to detect the dark dust band in 'b'.