- DDOTI Closed for the Winter Break
- DDOTI Observations of the LIGO/Virgo Source S190521g
- DDOTI Observations of the LIGO/Virgo Source S190426c
- DDOTI Observations of the LIGO/Virgo Source S190408an
- DDOTI Installation of All Six Telescopes
- DDOTI Observations and Possible Detection of GRB 190129B
DDOTI Closed for the Winter Break
22 December 2019
DDOTI has closed for the OAN winter break. Most of the other telescopes were closed on 14 December, but for the first time DDOTI, COATLI, and SAINT-EX stayed open longer under the care of a skeleton crew. We thank Ilse Plauchu and Rosa Becerra for technical support in this period.
DDOTI Observations of the LIGO/Virgo Source S190521g
21 May 2019
DDOTI observed a 14 by 21 degree region (294 square degrees) centered on the probability peak of the LIGO/Virgo source S190521g, a candidate binary black-hole merger. We detect no uncataloged sources with significant fading down to our 10-sigma limit of 18.7 magnitude. We reported our observations in a GCN Circular
DDOTI Observations of the LIGO/Virgo Source S190426c
28 April 2019
DDOTI observed a 460 square degrees centered on the probability peak of the LIGO/Virgo source S190426c, a candidate binary neutron-star merger. We reported our observations in a GCN Circular
DDOTI Observations of the LIGO/Virgo Source S190408an
9 April 2019
DDOTI observed an 11 by 7 degree region (70 square degrees) centered on the probability peak of the LIGO/Virgo source S190408an, a candidate binary black-hole merger. We reported our observations in a GCN Circular
DDOTI Installation of All Six Telescopes
21 March 2019
DDOTI has been observing with two telescopes since the summer of 2017. We have now installed the four remaining telescope to give a full complement of six telescopes. The additional telescopes are a major hardware contribution from the University of Maryland group lead by Nora Troya and Alexander Kutyrev.
The installation was carried out by Fernando Ángeles, Alejandro Farah, Diego González, Margarita Pereyra, and Alan Watson with help from the staff of the Observatorio Astronómico Nacional.
Fernando Ángeles (left) and Alan Watson (right) with all six telescopes.
DDOTI Observations and Possible Detection of GRB 190129B
30 January 2019
DDOTI observed the entire IPN error box of GRB 190129B and detected a faint, apparently fading source which we suggest is the afterglow. We reported our results in a GCN Circular