Previous announcements / Anuncios anteriores

March 27, 2024 – Astronomers Unveil Strong Magnetic Fields Spiraling at the Edge of Milky Way’s Central Black Hole

A new image from the Event Horizon Telescope (EHT) collaboration has uncovered strong and organized magnetic fields spiraling from the edge of the supermassive black hole Sagittarius A* (Sgr A*). Seen in polarized light for the first time, this new view of the monster lurking at the heart of the Milky Way Galaxy has revealed […]

March 7, 2024 – Power Restored at the LMT

As noted in a previous message to our user community, the LMT has been without power for a number of months. The loss of power followed a severe electrical storm at the 4600m-altitude LMT site which damaged the input power line and our power station at the mountain summit. Last week, repairs to the system were completed and power to the telescope was fully restored.

January 18, 2024 – M87* One Year Later: Proof of a persistent black hole shadow

The Event Horizon Telescope Collaboration has released new images of M87* from observations taken in April 2018, one year after the first observations in April 2017.

December 15, 2023 – The evaluation results for the proposals of the 2024-S1 season are available

The LMT is pleased to announce that the review process of the proposals submitted to the 2024-S1 Call has been completed and the results are now available.

September 29, 2023 – Call for Proposals for the 2024-S1 observing season is now closed

The Call for Proposals for the 2024-S1 observing season is now closed.

August 23, 2023 – Call for Proposals for the 2024-S1 observing season is now open

The LMT announces a new call for proposals for the 2024-S1 observing season.

August 18, 2023 – LMT Observations Temporarily Suspended

Message to the LMT user-communities: Suspended LMT observations and delay to the release of the next Call for Scientific Proposals for the LMT 2024-S1 observing season.

March 7, 2023 – Situation report on impact of Volcán Sierra Negra forest fire on Large Millimeter Telescope operations

A recent major forest fire on Volcán Sierra Negra, located in the Mexican federal National Park of Pico de Orizaba, has negatively impacted the current operations of the Large Millimeter Telescope (LMT) and the High Altitude Water Cherenkov Array (HAWC).

Jan 13, 2023 – LMT participation in the 241st AAS meeting

The Large Millimeter Telescope (LMT) hosted a booth at the 241st AAS meeting was held in Seattle, WA on 8-12 January, 2023.

May 12, 2022 – First image of the supermassive black hole at the center of the Milky Way

The EHT Collaboration unveils the first image of the supermassive black hole at the center of the Milky Way.

July 28th, 2021 – Current Status and Preparation to Return to Large Millimeter Telescope Science Operations under COVID-19

In March 2020 the Large Millimeter Telescope (LMT) ceased all scientific operations due to the COVID-19 pandemic and the telescope currently remains closed. During the last 16 months a limited number of visits to the LMT site have been possible, primarily to make inspections of the telescope and site infrastructure.

Telescopes Unite in Unprecedented Observations of Famous Black Hole

The Event Horizon Telescope (EHT) collaboration joins efforts with different institutions and telescopes around the world to produce a multi-frequency view of the supermassive black hole in the center of the galaxy M87.

Astronomers Image Magnetic Fields at the Edge of M87’s Black Hole

The Event Horizon Telescopes captures the polarised light, a signature of magnetic fields, at the edge of M87’s Supermassive Black Hole.

March 25, 2021 – LMT announcement of delay to start of 2021-S1 LMT observing season

In light of continued Federal restrictions in Mexico due to the COVID-19 pandemic, the LMT Collaboration is unable to safely restart the maintenance and scientific operation of the telescope on the timescale we had originally planned.

Call for Science Proposals (2021-S1)

The Large Millimeter Telescope Alfonso Serrano (LMT) invites members of the Mexican, U.S. and Spanish astronomy research communities to participate in the open call for scientific observing proposals (2021-S1).

Webinar meetings with the scientific communities of the LMT partners

Over the next two months the LMT will host a series of short Webinar meetings with the scientific communities of the LMT partners in Mexico and the U.S.

ASTRO 2020: LMT Facilities White Paper

The LMT collaboration has prepared a facilities white paper for The National Academies of Sciences, Engineering, and Medicine Decadal Survey on Astronomy and Astrophysics.

Next Generation Event Horizon Telescope

The NSF will continue its support to the EHT, with the LMT serving as a testbed for advanced dual frequency receivers.

September 5th, 2019: the EHT has been awarded the 2020 Breakthrough Prize in Fundamental Physics

The Event Horizon Telescope (EHT) international collaboration, including the LMT, has been awarded the “2020 Breakthrough Prize in Fundamental Physics”.

LMT Facilities White Paper for the US ASTRO2020 Decadal Survey

The LMT collaboration is writing a facilities white paper for The National Academies of Sciences, Engineering, and Medicine Decadal Survey on Astronomy and Astrophysics.

The LMT and the first image of a super-massive black hole

On April 10th 2019, the LMT and the EHT Collaboration presented the first image of the shadow of a super-massive black hole (M87*).

April 10th: Announcement of the first Event Horizon Telescope results

The Event Horizon Telescope Collaboration will present its first results in multiple simultaneous press conferences around the world. The event will be streamed live online.

The LMT detects unexpected and powerful outflow of molecular gas in a distant active galaxy similar to the Milky Way

Astrophysicists, using the LMT, have detected an unexpected and powerful outflow of molecular gas in a distant active galaxy similar to the Milky Way.

LMT collaborator wins IAU PhD Prize

Gisela Ortiz, former PhD student at the Instituto de Radioastronomía y Astrofísica (UNAM) and LMT collaborator, has been awarded the IAU prize for best 2017 PhD thesis in Fundamental Astronomy.

13 December 2017 – The 50m diameter primary surface of the LMT has been completed

On December 13th, 2017, the last two segments of the 50m diameter primary surface of the LMT were installed.

15 September 2017 – Call for Science Proposals with the 50m LMT (2018-S1)

The Large Millimeter Telescope Alfonso Serrano invites members of the Mexican astronomy community and members of the Department of Astronomy at the University of Massachusetts and the Five College Astronomy Department to participate in the call for Science observing proposals 2018-S1.

May 2017 – A new hexapod and secondary reflector surface (M2) has been installed at the LMT.

A new hexapod and a secondary reflector surface have been installed and successfully tested at the LMT.

April 2017 – The LMT has successfully participated in the Event Horizon Telescope observations.

During the period 4-10 April 2017, the LMT participated in the Event Horizon Telescope (EHT) experiment to image the supermassive black hole at the center of our Galaxy.

25 August 2015 – Call for Early Science Proposals (2015-ES4)

The Large Millimeter Telescope Alfonso Serrano (LMT) invites members of the Mexican astronomy community and members of the Department of Astronomy at the University of Massachusetts and the Five College Astronomy Department to participate in the call for Early Science observing proposals 2015-ES4.

May 2015 – The LMT has successfully participated in the Event Horizon Telescope observations.

The LMT participated in the Event Horizon Telescope experiment to image the supermassive black hole at the centre of our Galaxy.

March 2015 – A new 1.3 mm receiver for VLBI observations has been installed at the LMT.

A new 1.3 mm dual-polarization receiver and coupling optics have been developed and installed at the LMT for VLBI observations.

10 December 2014 – First refereed paper based on LMT data has been published

10 December 2014 – First refereed paper based on LMT data has been published

31 August 2014 – The reception of proposals for the 2014-ES3 campaign has been closed

18 July 2014 – Call for Early Science Proposals (2014-ES3)

The Large Millimeter Telescope Alfonso Serrano (LMT) invites members of the Mexican astronomy community and members of the Department of Astronomy at the University of Massachusetts and the Five College Astronomy Department to participate in the third call for Early Science observing proposals.

Time Travel: Installing an Atomic Clock at 15,000 Feet

Scientific American has published an article regarding the installation of an hydrogen maser at the LMT. This atomic clock will allow the LMT to participate and contribute in VLBI observations.

New Hydrogen Maser Installed at the LMT

A US-Mexican team of astronomers installed a hydrogen maser frequency standard at the LMT to enable Very Long Baseline Interferometry (VLBI) experiments.

LMT 2014-ES2: reception of observing proposals closed.

The Call for Proposals to observe with the LMT during the 2014-ES2 season was closed on January 13th, 2014. The proposals are now under evaluation by the Scientific Committee, in order to assign telescope time and schedule the 2014-ES2 observations.

Announcement of Opportunity (2014-ES2)

The Large Millimeter Telescope Alfonso Serrano (LMT) invites members of the Mexican astronomy community and members of the Department of Astronomy at the University of Massachusetts and the Five College Astronomy Department to participate in the second call for Early Science observing proposals.

INAOE and WebCams de México have installed two HD cameras at the LMT site

On September 18th, 2013, INAOE and WebCams de México commissioned two HD web cameras at the LMT site which will continuously broadcast images via the internet.

VLBI Fringe Detections between the VLBA and the LMT

An international team of US and Mexican scientists has completed a successful Very Long Baseline Interferometry (VLBI) test between the Large Millimeter Telescope Alfonso Serrano (LMT) and several Very Long Baseline Array (VLBA) stations.

Announcement of Opportunity (2013-ES1)

The 50-m Large Millimeter Telescope (LMT) invites members of Mexican astronomy community and members of the Department of Astronomy at the University of Massachusetts and the Five College Astronomy Department to participate in the first call for Early Science observing proposals.