DDT at GTC

GTC DDT request form

We are pleased to announce the availability of Director Discretionary Time (DDT) at the 10.4m GTC facility (GTC-DDT), which includes up to 10 nights per semester. To be eligible for GTC-DDT time, a proposal must pursue exceptional and high impact scientific goals and fall within one of the following categories:

  • be an unforeseen phenomenon of particular importance requiring quick response;
  • be the follow-up of recent ground-based or space observations, where urgent action might provide break-through results;
  • be a high risk, high gain proposal. It is considered as an element of risk to request a limited amount of telescope time to test the feasibility of a potentially important program.

Members of any research centre of the GTC community (Spain, Mexico, and the University of Florida) can apply for GTC-DDT time.  Proposers should provide a very clear justification why the program should be considered for the GTC-DDT scheme and is not suitable for submission to the corresponding TAC at the standard deadlines.  The amount of time that can be requested by a single proposal is generally limited to a small number of hours. More time-expensive proposals should deal with exceptional science.

GTC-DDT proposals can be submitted at any time, using the corresponding form. Scientific appraisal will be done in the shortest possible time (typically 1 week) by a committee coordinated by the IAC Director (it includes CAT members and international experts in the field of research of the proposal). Technical assessment will be done by the GTC staff. GTC-DDT proposals can be carried out in service or visitor mode, although service (queue) mode is preferred. The list of the accepted GTC-DDT proposals will be made public, and is shown at the end of this page.

Within two months following the completion of observations, the Principal Investigator (PI) of an executed GTC-DDT program must submit a report on the achieved science and data publication plan to the Spanish CAT (catiac [at] iac.es). There is a limit of up to two GTC-DDT proposals that can be “open/active” per PI. Approved GTC-DDT proposals will be “closed” once the CAT receives and accepts this report.

Proprietary period for GTC-DDT raw observations is 12 months. The Principal Investigator of a GTC-DDT project will be asked to to put the reduced data into the GTC archive.

Any publications originating from GTC-DDT shall include a text of acknowledgement of the kind: “Based on observations made with the GTC telescope, in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofísica de Canarias, under Director’s Discretionary Time”.

 

Accepted GTC DDT proposals since August 2014, in reverse chronological order.

Code Title PI Allocated (hrs) Publications

GTC2017-087

Chasing the redshift of QSO J0509+0541, the first cosmic neutrino source

Daniel Rosa González

2.5 h, OSIRIS

 

GTC2017-086

Tracing the Triton Atmosphere

Julia de León

0.5 h, EMIR

 

GTC2017-083

Is Kiso5639 the least metallic galaxy known having CO emission?

Jorge Sánchez Almeida

1.2, OSIRIS

 

GTC2017-077

Late-time spectrum of a new phase in the evolution of the type IIb SN 2013df

Antonia Morales-Garoffolo

1, OSIRIS

 

GTC2017-074

Spectral mapping of dips in the edge-on Black Hole Swift J1357-0933

Jorge Casares

2.5, OSIRIS

 

GTC2017-073

GTC/CIRCE Simultaneous Observations of PSR J1023+0038 with XMM-Newton, NuSTAR, TNG and NOT (and VLA to be confirmed)

Nanda Rea

1.5, CIRCE

 

GTC2017-071

Fast photometry and spectroscopy of white dwarf eclipses

Roi Alonso

1, OSIRIS

 

GTC2017-070

Looking for the true radius of a disappearing planet

Enric Pallé

3, OSIRIS

 

GTC2017-068

Determining the redshift of an ultra-bright NIR-MIR/Planck selected Dusty Starburst Lensed Galaxy

Anastasio Díaz Sánchez

2, OSIRIS

Díaz-Sánchez et al. (2017, ApJL, 843, L22)

GTC2016-064

Early Steps of the Milky Way Assembly: Old Stars as Tracers of the Formation and Evolution of the Galactic Halo

David Sánchez Aguado

3.6 on-source, OSIRIS

 

GTC2016-062

Probing the inner Ooort Cloud population

Julia de León

0.5, OSIRIS

 –

GTC2016-061

An object of unknown nature in the Stripe82

Ignacio Trujillo

1, OSIRIS (not completed)

 

GTC2016-059

A massive globular cluster in the lowest mass galaxy to date

Michael Beasley

2, OSIRIS

 

GTC2016-058

GTC/OSIRIS spectroscopy of the lensed type Ia supernova iPTF16geu

Zach Cano

4.5, OSIRIS

Cano et al. (2017, submitted to MNRAS)

GTC2016-057

Simultaneous IR and X-ray short-term variability observations of the gamma-ray binary LS 5039 using GTC/CIRCE and NuSTAR.

Josep M. Paredes

2, CIRCE

 

GTC2016-055

Visible spectroscopy of two Extreme Trans-Neptunian Objects: 2004 VN112 and 2013 RF98.

Julia de León

2.5, OSIRIS

de León et al. 2017, MNRAS, 467, L66

GTC2016-054

GTC/OSIRIS spectroscopy of a bright, unique, strongly lensed Lyman alpha emitting galaxy at z=2.825.

Rui Marques-Chaves

1, OSIRIS

Marques-Chaves et al. 2017, ApJ, 834, L18

GTC2016-053

Unconvering the host galaxy of a bright gamma-ray emitting NLSy1 nucleus.

José Acosta-Pulido

1, CIRCE

D’Ammando et al. 2017, MNRAS, 469, L11

GTC2016-052

GTC/CIRCE simultaneous observations of Sgr A* flares with Spitzer and Chandra.

Stephen Eikenberry

4, CIRCE

 

GTC2016-051

The nature of dark matter probed by a once in a lifetime event: observing a single B star at z=1.5 magnitied thousands/millions of time by the MACS1149 Hubble Frontier Field cluster.

Pablo G. Pérez-González

8, OSIRIS (only 6 were executed)

 

GTC2016-049

Spectroscopic exploration of the most extreme evolved planetary system

Pablo Rodríguez-Gil

2.5, OSIRIS

 

GTC2016-046

Completing the near-infrared characterization of the nearest and coldest free-floating exoplanet.

Nicolas Lodieu

5, CIRCE (not completed)

GTC2016-045

Discovery of a lensed SNIa at z=2.2 to measure the equation of state of dark energy at z=2.2. Kight curve in Ks.

Pilar Ruiz Lapuente

1, CIRCE

 

GTC2016-044

Early steps of the Milky Way: Old stars as tracers of the formation and evolution of the Galactic halo.

David Sánchez Aguado

2.5 on-source, OSIRIS

 

GTC2016-042

A test to confirm or disprove the detection with GTC of the most spectacular example to date of a giant quasar outflow

Montserrat Villar Martín

1, OSIRIS

Villar Martín et al. 2017, MNRAS, in press

Is J033644-205849 the most high-redshifted radio galaxy?

R. Herrero-Illana

1

 

GTC2015-039

Spectrophotometry of disintegrating planetesimals around a white dwarf

Roi Alonso

2, OSIRIS

Alonso et al. 2016, A&A, 589, L6

GTC2015-038

Spectroscopic confirmation of a newly discovered optical Einstein ring in the Sculptor constellation

Margherita Bettinelli

1, OSIRIS

Bettinelli et al. 2016, MNRAS, 461, L67

GTC2015-033

Measuring the mass of the fastest known accreting millisecond pulsar to constrain the neutron star equation of state and the behavior of matter at the highest possible density

Alessandro Papitto

1, OSIRIS

 

GTC2015-032

First imaging of the elusive, cold, metal-rich gas at the origin of the abundance discrepancy problem in planetary nebulae

Jorge García Rojas

1.2, OSIRIS

García-Rojas et al. 2016, ApJL, 824, L27

GTC2015-031

Searching for light echoes of the 2015 outburst in the black hole binary V404 Cyg

Jorge Casares

2, CanariCam

 

GTC2015-030

Mapping mass outflows during the 2015 outburst of the black hole V404 Cyg

Teo Muñoz Darias

5, OSIRIS

Muñoz-Darias et al. 2016, Nature, 534, 75

GTC2015-028

Dark matter in the most diffuse galaxies

Michael Beasley

4.2, OSIRIS

Beasley et al. 2016, ApJ, 819, L20

GTC2015-026

Confirmation and details of a micro-quasar in M81 with approaching/receding jets at c~0.15

Jifeng Liu

3, OSIRIS

Liu et al. 2015, Nature, 528, 108

GTC2015-023

Searching for missing links between galaxies and dark halosq

Giuseppina Battaglia

3, OSIRIS

 

GTC2015-020

Detailed spectroscopic monitoring of a bright M31 nova

Peter Pessev

0.5, OSIRIS

Kurtenkov et al. 2015, A&A, 578, L10

GTC2014-015

Monitoring of a Great Storm in Uranus

Ricardo Hueso Alonso

2, OSIRIS

 

GTC2014-014/16

A search for cosmic accretion on the periphery of local spiral galaxies

Johan Knapen

1.7, OSIRIS

 

GTC2014-013

Discovering new gravitationally lensed quasars from the Pan-STARRS1 survey

Luis J. Goicoechea

1.25, OSIRIS

 

GTC2014-012

Proving s record massive neutron star in the millisecond pulsar PSR J2214+5135

Jorge Casares

4.5, OSIRIS

 

GTC2014-011

CanariCam observations of Type Ia SN 2014J

Charles Telesco

1, CanariCam

Telesco et al. (2015, ApJ, 798, 93)

GTC2014-010

Imaging and spectra of a Great Storm on Uranus

Ricardo Hueso Alonso

3.7, OSIRIS