Combined Array for Research in Millimeter-Wave Astronomy

Astronomy with CARMA Raising our Sites

CARMA OriginsCARMA Origins

Berkeley-Illinois-Maryland Array

Owens Valley Array

Cedar Flat – March 2004

CARMA Contract: February 2003U.S. F.S. Site Approval: May 2004

Site Development: 2004

BIMA 9 x 6.1m + OVRO 6 x 10.4m• enhanced research capabilities

• hands-on training w. state-of-art instrument• easy access (maintenance & development)

•year round operation

Cedar Flat – elevation 2200m

August 2005

First Light EnhancementsFirst Light Enhancements

• Better Site - higher elevationatmospheric transmission x 2, improved phase stabilityyear-round observing: routinely at 1 mm

• Hybrid array – more telescopes, more baselinesincreased imaging fidelity, speed, & dynamic range enhanced snapshot & mosaicing wide field mm-wave imaging on scales from 0.13 to 1(to 3 with 8 x 3.5 m U Chicago SZA array)

• Enhanced performanceupgraded antenna drives, cryogenics, telemetryhierarchical distributed monitor and control software

• Combined resources of partner universitiesbroad science and technology base

Anticipated Developments 2005-Anticipated Developments 2005-20082008

• Receiverslower noise, wideband, dual polarization(HEMT/SIS/MMIC development programs)

• Correlatorexpanded COBRA-based (SZA demonstrated) increased bandwidth - 4 GHz x 2 polarizations

• Improved access to CARMA dataautomated pipeline image production, user-friendly

archive

• Implementation of B and A arrays

factor of 2 improvement in sensitivity

6

Array Configurations

CARMA ScienceCARMA Science

• Summary of the kind of science that is enabled with references to later talks

• CARMA will build on science accomplished• Recall OVRO & BIMA results MMA in Bahcall Report

ultimately ALMA ( science examples in proposal)

• CARMA endorsed in most recent Report –AANMto study star formation at all epochs etc. &to foster the training of students and US capability in mm-

wave interferometry at the start of the ALMA era and beyond

CARMA for the CommunityCARMA for the Community

• AANM “to foster…U.S. capability….(in)… ALMA era and beyond”30% observing time for the community representation on Time Allocation Committeetraining in mm-wave interferometric observingCARMA summer schoolpipeline and data archive, links to National Virtual Observatorycomplements Spitzer, SOFIA, NGST, ALMA in northern hemisphere

• Educate leaders for the futurehands on training on state-of-the art instrument(postdocs, grad students operate array/allocated substantial time) support US ALMA effort in scientific research enable strong US technology development program builds on past success - http:/www.mmarray.org/info.html (more than 12 professorial faculty directly associated with CARMA)

• Public OutreachOpen House, relations with WMRS, local school resource

CARMA for the CommunityCARMA for the Community• Recall AANM “to foster..”

Is http:/www.mmarray.org/info.html updated with all the young leaders and educators we have produced?

Women and minorities• mm-Wave Community

More than 12 professorial faculty associated with CARMAPostdocs, grad students allocated substantial array

observing time, do most of observing = trainingCARMA Summer School

• Larger astronomy communityimproved accessibility, links to national virtual observatory?contributions to ALMA from pioneering arraysCARMA pathfinder role for ALMACARMA complements Spitzer, SOFIA, NGST, northern

hemisphere complement to ALMA• Public Outreach

Open House, relations with WMRS, local school resource

Management & OperationsManagement & Operations

• CARMA Board and SSC• Director & Project Manager/ Asst Dir Operations• U Chicago role• Science, Technical Development,

Construction/Operations Assistant Director Operations –coordinating role

• ObservingStudents, postdocs main observersFriend of the Telescope

ScheduleSchedule

• More appropriate for Douglas to do all?

OR• Summarize status at end of grant period• Comment on pad construction and other

outstanding tasks –WVR• Note bulk of construction complete in spite of

winter

Budget OverviewBudget Overview

CARMA Capital Construction• 2001 – CARMA construction estimated at $15M

BIMA universities, Caltech, NSF - $5M each• Nov 2005 – NSF capital construction tasks complete

short-term funding requested for salaries of staff required to complete systems integration

CARMA Operations & Development – a distributed effort Cedar Flat – operations & outside observer supportOVRO – hardware and software maintenance and support,

receiver, correlator & software developmentRAL - hardware maintenance and support, receiver, correlator

& WVR developmentUIUC – WVR development, development and maintenance of

archive and pipeline imaging capabilityUMd – software maintenance and support, software

development Increased overall costs

Future Future

• Largely John Carpenter’s but I will add a slide from John Carlstrom with U Chicago role + science enabled

BackupsBackups

Current Graduate StudentsCurrent Graduate Students

• BerkeleyAdam Leroy, Jonathan Swift, Evan Levine, Kristen Shapiro,

Nia Imara

• CaltechJoanna Brown, Micol Christopher, Stuartt Corder, Melissa Enoch,

Laura Hainline

• IllinoisPaulo Cortes, Douglas Friedel, Sheryl Kuo, Woojin Kwon,

Jerry Shaw, Shiya Wang

• MarylandNicholas Chapman, Rahul Shetty, Misty Lavigne,

Stephanie Zonak, Elyse Casper, Lisa Wei

• Chicago (SZA)Chris Greer, Ryan Hennessy, Michael Loh, Matthew Kyle Sharp

First Light EnhancementsFirst Light Enhancements

• Better Sitehigher elevation, atmospheric transmission x 2 improvement improved phase stabilityyear-round observing: routinely at 1 mm

• Hybrid arraygreater number of telescopes & baselinesincreased mm-wave imaging fidelity & dynamic rangeincreased imaging speed – snapshot & mosaicing capabilities wide field mm-wave imaging on scales from 0.13 to 1(with 8 x 3.5 m U Chicago SZA array to 3)

• Combined resources of partner universitiesbroad science and technology base