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- 2005-1-25 15:30 UT
- Duration: 1 hr
- USA Toll Free Number: 877-874-1919
- Toll Number: +1-203-320-9891
- Passcode: 185064
- Leader: Al Wootten
| 11 Jan 2005
|| ALMA Town Meeting, AAS San Diego; Presentations
| 14-15 Jan 2005
|| CSV Discussion, Socorro; Presentations
| 25 Jan 2005
|| NA Board Telecaucus
| 27 Jan 2005
|| ALMA Board Telecon Dates for 2005
| 24-25 Feb 2005
|| ASAC Face-to-face Garching
| 24 Feb 2005
|| ALMA Board Telecon. Rebaselining to be discussed.
| 5-6 April 2005
|| ALMA Board Face-to-face meeting, Pasadena, CA.
- Old Business The enhanced Agenda from last month's meeting is available. Science IPT notes from last month's telecon.
collection of papers relevant to ALMA.
- New Business--Project news/updates (Wootten, Wilson, Kawabe)
- Milestones--09.2.17.2 Complete draft ICD between Science and Site Planned 2303d Not Critical
- Group Activities (all)
- Next meeting is on February 15th (15:30 UT)
Science IPT Group Activity Reports
Please include your Group Activity Report here (How to Enter Your Report), or email it to AlWootten
1 Science IPT Statement of Work: Draft Document
, Risk, Budget
2 ASAC news Next telecon 1 Feb, face-to-face meeting 24-25 Feb in Garching. Unapproved Minutes
of January meeting
4 Astronomer Outreach: NRAO Newsletter
. NRAO ALMA Calendar
Emerson/Laing -- Instrument Scientists
EVLA Memo #88
Quantization Noise, by A. R. Thompson and D. T. Emerson
Congratulations to John on the birth of a son!
One aspect of rebaselining of the ALMA project for us may well be redesign of the array.
Japan has proposed to place the ACA in the western of the sites proposed by the project. The reasons are given in a document
on almaedm. Please send your comments; the proposal seems well justified to those
who have responded.
Robert Lucas -- SSR
Michiel Hogerheijde -- DRSP
This has been a major focus over the last few weeks--please see the wiki page for details.
Mark Holdaway/Steve Myers -- Imaging
Calibrator Survey: We need versions of this at different levels of scope, as this will be new scope for the
Surveillance cameras have been operated for some time at the site. In the ALMA era, there are safety reasons for deploying
surveillance cameras. We have used these for cloud cover studies (not terribly useful as they look at the horizon).
Is there a scientific need for these--if so, what are the requirements. Discussions to date have suggested the usefulness
of an infrared camera looking upward similar to that Japan has deployed at SUBARU but such a camera would have different
requirements from those demanded by safety considerations.
The Altiplanic Winter has begun with a vengeance, we hear.
Science Corner: Sebastian Wolf writes: The new
simulation was done for an observing wavelength of * 870mu *,
instead of 330mu.
These simulations show that the locally heated region around
the (proto)planet is not visible anymore, even if the system
is in a distance of only 50pc. The assumed system
temperature is 220K (compared to 1200K at 900GHz - based on ALMA Memo
All other parameters (phase noise, pointing error/model, etc.)
are the same as in Wolf & D'Angelo (2005;
The main reason for the negative result is the fact that the
hot region around the planet has a small diameter only.
Increasing the beam size, this signal is smoothed with the almost
zero signal of the low-density gap and cannot be distinuished
anymore from the bright region of the disk outside the gap.
That's at least my understanding of the situation (which I found
to be true in all other simulations I performed).
Fig. 2. Simulation of ALMA observations of disk with an
embedded planet of 1Mjup around a 0.5M⊙ star
(orbital radius: 5AU).
The assumed distance is 50 pc or 100 pc as labeled. The disk
mass is set to that of the Butterfly Star in Taurus. Note
shape of the spiral wave near the planet and the slightly shadowed
region behind the planet
in the upper images.
See set of PPT slides
from W. Wolf.
Dusty and Molecular Universe 27-29 October 2004, Paris
2005 IEEE International Conference on Acoustics, Speech, and Signal Processing March 19-23 2005, Philadelphia
See Radio Astronomy Session
; ALMA Article
for ICASSP. Comments? Reviews welcomed.
IAU Symposium 227 Massive Star Birth: A Crossroads of Astrophysics May 16-20 2005, Acireale, Italy
Workshop on submillimeter wavelength astronomy
in Cambridge (JUN 13-16).
Astrochemistry throughout the Universe: Recent Successes and Current Challenges 2005 August 29 - September 2; Asilomar, California
Protostars and Planets V 24 - 28 October 2005 Hilton Waikoloa Village, The Big Island, Hawaii
URSI General Assembly 23-29 October 2005; New Delhi, India; "Mm/submm Techniques and Science" session 25-26 Oct.
- 18 Jan 2005