GASCLOUDwiki:

Observing proposals

2014 Approved observing proposals

PI

Band

Instrument

Title

Allocated Time

Strategy

UT observing dates

Rushton

Radio

VLA and VLBA

Simultaneous radio and X-ray monitoring of the G2 encounter with Sgr A*

2x8h

Simultaneous with XMM

April 3, 0800 - 1630 UT

Tsuboi

22 GHz

VLBI (Japanese network)

Daily Monitoring of Sgr A* at 22GHz with Japanese VLBI Network

1h/day

Daily monitoring of Sgr A* at 22GHz

up to May 2014

Wang

1.1mm

LMT/AzTEC

LMT/AzTEC Variability Study of Sgr A* during the G2 Encounter

0.5hr/day

daily+two long intraday runs simult. with Chandra

April + May 2014

Agudo

1+2+3mm

IRAM 30m

Monitoring the Encounter of a Gas Cloud with Sgr A*

weekly

flux, linear polarization and rotation measure of Sgr A*

throughout first half of 2014

Gillessen

NIR

SINFONI/VLT

Watching G2 disrupt [...]

12h

Integral field spectroscopy to follow evolution of line shape

Mar 27 - Apr 1, 2014

Gillessen

NIR

SINFONI/VLT

Watching G2 disrupt [...]

12h

Integral field spectroscopy to follow evolution of line shape

Apr 7 - Apr 10, 2014

Gillessen

NIR

SINFONI/VLT

Watching G2 disrupt [...]

12h

Integral field spectroscopy to follow evolution of line shape

Apr 21 - Apr 24, 2014

Gillessen

NIR

SINFONI/VLT

Watching G2 disrupt [...]

8h

Integral field spectroscopy to follow evolution of line shape

May 7 - May 9, 2014

Gillessen

NIR

SINFONI/VLT

Watching G2 disrupt [...]

33h

Integral field spectroscopy to follow evolution of line shape

Aug 27 - Sep 3, 2014

Gillessen

NIR

SINFONI/VLT

Watching G2 disrupt [...]

12h

Integral field spectroscopy to follow evolution of line shape

Sep 27 - Oct 1, 2014

Gillessen

NIR

NACO/VLT

Watching G2 disrupt [...]

8h

NIR imaging

Sep 26 - Sep 30, 2014

Eckart

NIR

SINFONI/VLT

Nature of variable SgrA* X-ray [...]

12h

simult. with XMM

Feb 27 - Mar 2, 2014

Eckart

NIR

SINFONI/VLT

Nature of variable SgrA* X-ray [...]

23h

simult. with XMM

Mar 24 - Mar 27, 2014

Nishiyama

NIR/MIR

IRCS,HiCIAO,COMICS/Subaru, NIFS/Gemini

Gas Cloud Accretion onto the SMBH Sgr A* [...]

12h

ToO: NIR spectroscopy, NIR polarimetry, or MIR imaging

Feb - Jul 2014

Ponti

X-ray

XMM

Monitoring a close encounter [...]

4 x 54ks

Two epochs per observing window

2014

Grosso

X-ray

XMM

53ks

simult. with VLT

2014-02-20 - 2014-02-28, 2014-03-08 - 2014-03-16, 2014-03-31 - 2014-04-08

Maeda

X-ray

Suzaku

Weekly Monitoring of X-ray flares from Sgr A*

180ks

Monitoring weekly (20ksec each) during Suzaku visible windows

Feb.-Apr. 2014

Degenaar

X-ray

Swift

Continuing a Swift legacy: the monitoring campaign of the Galactic Center

248ks

Daily monitoring (1ks/obs)

April 1, 2013 - March 31, 2014

Haggard

X-ray

Swift

Swift Monitoring of the Encounter Between Sgr A* and the Gas Cloud G2

68ks

Monitoring weekly, then twice weekly, then daily near pericenter (1ks/obs)

April 1, 2013 - March 31, 2014

2013 Approved observing proposals

PI

Band

Instrument

Title

Allocated Time

Strategy

UT observing dates

Hyman

m

VLA

Monitoring for Radio Transients in the Galactic Center with the Low-Band System

16 x 1.5h

Biweekly monitoring of Sgr A* and for other transients with 200 MHz bandwidth

September 2013 - May 2014

Takekawa

cm (S/X)

VLBI-NICT

NICT VLBI Monitoring Observations of Sgr A* at 8 GHz and 2 GHz

5h/day

Monitoring of Sgr A* at 8 GHz and 2 GHz

at least till May 2014

Ott

cm

VLA

Molecular Absorption Survey against the G2 Cloud Sgr A* Accretion Event

10h

Spectrum across multiple bands

triggered at a flux >6Jy, rms tau ~10^-3

Reid

cm

VLBA

Astrometry of Sgr A*: Preparing for the Infall of a Gas Cloud

2 x 2 x 6h

Pre-encounter 22 and 43 GHz astrometry

February 2013

Rushton

cm

VLA & VLBA

Simultaneous radio and X-ray monitoring of the G2 encounter with Sgr A*

2 x 8h

Simultaneous with XMM

VLA schedule & VLBA schedule

public NRAO

radio

VLBA

Angular size measurements and astrometry of SgrA*

1 full track @ 2 bands

single, pre-encounter, baseline measurement

beginning of semester 2013A, eNews letter

public NRAO

radio

VLA

Continuum monitoring

13 x 2hrs x 8 bands

initially bimonthly, then monthly monitoring

eNews letter

Tsuboi

22 GHz

VLBI (Japanese network)

Daily Monitoring of Sgr A* at 22GHz with Japanese VLBI Network

1h/day

Daily monitoring of Sgr A* at 22GHz

up to May 2014

Akiyama

43 GHz

VERA

The multi-epoch VERA observations of the galactic center Sgr A* before and after the encounter with the Gas Cloud G2

15 x 6h

Monitoring the radio flux and size at 43 GHz every three weeks

Throughout 2013 except June and July

Akiyama

22 & 43 GHz

KaVA

Deep Imaging Observations of Sgr A* and the G2 Cloud with KVN+VERA

4 full tracks @ 2 bands

Quasi-simultaneous with EHT

2013, March 23 - 26

Akiyama

22 & 43 GHz

KaVA

Deep Imaging Observations of Sgr A* and the G2 Cloud with KVN+VERA

4 full tracks @ 2 bands

Quasi-simultaneous with GMVA

2013, May 16-21

Akiyama

22 & 43 GHz

KaVA

Deep Imaging Observations of Sgr A* and the G2 Cloud with KVN+VERA

6 x 5hrs

ToO: Imaging and Astrometry of Sgr A*

Trippe

86 GHz

GMVA (4 European stations)

Real-time Monitoring of Accretion onto a Supermassive Black Hole: Observing the 2013 Gas Infall Event at Sagittarius A*

3 x 6 h

Monitoring of closure phases, limited mapping

May 16-21

Agudo

1mm + 3mm

IRAM 30m

Monitoring the Encounter of a Gas Cloud with Sgr A*

bi-weekly

flux, linear polarization and rotation measure of Sgr A*

throughout 2013

Yusef-Zadeh

mm

VLBA

Joint VLBA/Chandra/EVLA Monitoring of the Gas Cloud G2 as it Encounters Sgr A*

6 x 7h

3mm monitoring with Chandra/VLA

May 2013

Marrone

millimeter

SMA

Polarization monitoring

5 x 7hrs

monthly monitoring of polarization and RM, Jan-May 2013 (to be reproposed for next semester)

Haggard

radio

EVLA

Joint Chandra/XMM/EVLA Monitoring of the Gas Cloud G2 as it Encounters Sgr A*

6 x 7hrs

Roughly monthly sampling near pericenter, simultaneous w/ Chandra obs

1: May 23, 03:00 - 10:00

Bower

millimeter

ALMA

The G2 Gas Cloud Encounter with Sagittarius A*: Accretion Structure on Scales of 3000 to 1 Schwarzschild Radii

10 x 1hrs x 2 bands

monthly monitoring beginning in 2013

Ott

(sub)millimeter

ALMA

Molecular Absorption Survey against the G2 Cloud Sgr A* Accretion Event

3.4h

Spectrum across multiple bands

triggered at a flux >6Jy, rms tau ~10^-3

Martin

(sub)millimeter

ALMA

Fuelling the Galactic center super massive black hole

Ho

(sub)millimeter

ALMA

Proper Motions of Gas in the Immediate Vicinity of the Galactic Supermassive Black Hole

Eckart

submm

APEX

Differential L'-band spectroscopy of the Dusty S-cluster Object (DSO/G2) approaching SgrA*

56h

Gillessen

NIR

SINFONI/VLT

Watching a gas cloud disrupt [...]

70h

Two epochs of deep integral field spectroscopy to follow evolution of line shape

VLT times

Gillessen

NIR

NACO/VLT

Watching a gas cloud disrupt [...]

20h

ToO: If SgrA* changes in 2013, get multi-band lightcurves

VLT times

Ghez

NIR

Keck/OSIRIS & NIRC2

A LGS-AO Study of our Galaxy's Central Black Hole and its Environs

18 x half-nights (~80 hours)

Deep Imaging & Spectroscopy of the central arcsec

Eckart

NIR

NACO/VLT

Differential L'-band spectroscopy of the Dusty S-cluster Object (DSO/G2) approaching SgrA*

10h

VLT times

Eckart

NIR

NACO/VLT

Nature of variable SgrA* X-ray and polarized NIR flares: Probing the accretion stream and source variability during the passage of DSO/G2

20h

VLT times

Eckart

NIR

ISAAC/VLT

Nature of variable SgrA* sub-mm and NIR flares: ISAAC probing the accretion stream and bright source variability during the passage of DSO/G2

28h

VLT times

Nishiyama

NIR/MIR

IRCS, HiCIAO, COMICS/Subaru

Gas Cloud Accretion onto the SMBH SgrA*

15h

ToO: NIR spectroscopy, NIR polarimetry, or MIR imaging

Baganoff

 X-ray

Chandra

Monitoring the Tidal Disruption of a Gas Cloud Approaching Sgr A*

6 x 20ksec

Roughly monthly sampling around pericenter time

Chandra schedule

Ponti

X-ray

Chandra / HETG

X-ray monitoring of Sgr A* during outburst

280ksec

ToO: If SgrA* gets brighter than Lx = 10^36 erg/s

Haggard

X-ray

Chandra

Joint Chandra/XMM/EVLA Monitoring of the Gas Cloud G2 as it Encounters Sgr A*

6 x 50ksec

Roughly monthly sampling around pericenter time

Chandra schedule

Haggard

X-ray

XMM

Joint Chandra/XMM/EVLA Monitoring of the Gas Cloud G2 as it Encounters Sgr A*

1 x 30ksec

Single obs. near pericenter

Ponti

X-ray

XMM

Capturing a major accretion event of Sgr A*

230ks

ToO: If Sgr A* becomes brighter than 10^35 erg/s

Ponti

X-ray

XMM

Monitoring Sgr A*

100ks

Monitoring the cloud-SgrA* interaction

2x50ks

Grosso

X-ray

XMM

150ks

3x50ks

Zhang

X-ray

NuSTAR

40ks

2013-04-26 01:00 to 2013-04-26 21:30

Degenaar

X-ray

Swift

Swift/XRT monitoring observations of the Galactic Center region

82ks

Bi-weekly monitoring (1ks/obs)

April 1, 2012 - March 31, 2013

Degenaar

X-ray

Swift

Continuing a Swift legacy: the monitoring campaign of the Galactic Center

248ks

Daily monitoring (1ks/obs)

April 1, 2013 - March 31, 2014

Haggard

X-ray

Swift

Swift Monitoring of the Encounter Between Sgr A* and the Gas Cloud G2

68ks

Monitoring weekly, then twice weekly, then daily near pericenter (1ks/obs)

April 1, 2013 - March 31, 2014

Morris

X-ray

Suzaku

Capturing a major accretion event of Sgr A*

200ks

ToO: if Swift > 5 x 10^35 erg/s

Maeda

X-ray

Suzaku

Weekly Monitoring of X-ray flares from Sgr A*

180ks

Monitoring weekly (20ksec each) during Suzaku visible windows (Aug.-Oct. 2013, Feb.-Apr. 2014)

Sunyaev

Gamma

INTEGRAL

Forthcoming major outburst of Sgr A*? Once in a life-time chance for INTEGRAL

2000 ksec

ToO

Wilms

Gamma

INTEGRAL

Observing the Galactic Center Region with INTEGRAL

1000 ksec

Kuulkers

Gamma

INTEGRAL

Regular and frequent INTEGRAL monitoring of the Galactic Bulge region

479 ksec

Yusef-Zadeh

Gamma

Fermi

The Gamma-ray Variability of Sgr A* Induced by an Infalling Cloud

duration of flare

ToO: LAT flux >5x10-6 ph/cm2/s or enhanced Lx

MAGIC-Collaboration

VHE

MAGIC

Monitoring of the GC at large zenith angle

60h

20 hr/yr + ToO

April - July (2013)

2013 Submitted observing proposals

PI

Band

Instrument

Title

Time Applied For

Strategy

Expected decision

HESS collaboration

Gamma

HESS

Watching the close encounter of a gas cloud with the galactic center in TeV light

60 hours + TOO

March - May 1 hour every 4 days, June - July 1 hour every 3 days, Aug - Sep. 1 hour every 2 days + TOO flux > 2.5x10-11 cm-2 s-1

Jan 30 2013

GASCLOUDwiki: ProposalList (last edited 2014-04-01 15:02:56 by AnthonyRushton)