Spare-Delhi Technological University

31/08/2019

The Mitacs Globalink Research Internship is a competitive initiative and a non - profit organization for international undergraduates from the following countries and regions: Australia, Brazil, China, France, Germany, Hong Kong SAR, India, Mexico, Tunisia, United Kingdom, and Ukraine. From May to October of each year, top-ranked applicants participate in a 12-week research internship under the supervision of Canadian university faculty members in a variety of academic disciplines, from science, engineering and mathematics to the humanities and social sciences.

Applications are open for the students through the given below link -

https://globalink.mitacs.ca/ #/student/application/welcome

Deadline - 18th September 2019.

10/04/2019

Astronomers have finally glimpsed the blackness of a black hole. By stringing together a global network of radio telescopes, they have for the first time produced a picture of an event horizon — a black hole’s perilous edge — against a backdrop of swirling light. This breakthrough was announced today in a series of six papers published in a special issue of The Astrophysical Journal Letters. The image reveals the black hole at the center of Messier 87, a massive galaxy in the nearby Virgo galaxy cluster. This black hole resides 55 million light-years from Earth and has a mass 6.5 billion times that of the Sun.

Some background and more details on this breakthrough -

>> This achievement was achieved with the help of event horizon Telescope[EHT]. It is a planet-scale array of eight ground-based telescopes forged through international collaboration.

>> The EHT observations use a technique called very-long-baseline interferometry (VLBI) which synchronizes telescope facilities around the world and exploits the rotation of our planet to form one huge, Earth-size telescope observing at a wavelength of 1.3mm. VLBI allows the EHT to achieve an angular resolution of 20 micro-arcseconds.

>> Although the telescopes are not physically connected, they are able to synchronize their recorded data with atomic clocks — hydrogen masers — which precisely time their observations. These observations were collected at a wavelength of 1.3 mm during a 2017 global campaign. Each telescope of the EHT produced enormous amounts of data – roughly 350 terabytes per day – which was stored on high-performance helium-filled hard drives. These data were flown to highly specialized supercomputers — known as correlators — at the Max Planck Institute for Radio Astronomy and MIT Haystack Observatory to be combined. They were then painstakingly converted into an image using novel computational tools.

>> The shadow of a black hole is the closest we can come to an image of the black hole itself, a completely dark object from which light cannot escape. The black hole’s boundary — the event horizon from which the EHT takes its name — is around 2.5 times smaller than the shadow it casts and measures just under 40 billion km across.

>> Link for all the six papers have given below -

1) The Shadow of the Supermassive Black Hole - https://iopscience.iop.org/article/10.3847/2041-8213/ab0ec7

2) Array and Instrumentation -
https://iopscience.iop.org/article/10.3847/2041-8213/ab0c96

3) Data Processing and Calibration - https://iopscience.iop.org/article/10.3847/2041-8213/ab0c57

4) Imaging the Central Supermassive Black Hole -
https://iopscience.iop.org/article/10.3847/2041-8213/ab0e85/meta

5) Physical Origin of the Asymmetric Ring -
https://iopscience.iop.org/article/10.3847/2041-8213/ab0f43/meta

6) The Shadow and Mass of the Central Black Hole -
https://iopscience.iop.org/article/10.3847/2041-8213/ab1141/meta

22/01/2019

An evanescent shell of glowing gas spreading into space — the planetary nebula ESO 577-24 — dominates this image [1]. This planetary nebula is the remains of a dead giant star that has thrown off its outer layers, leaving behind a small, intensely hot dwarf star. This diminished remnant will gradually cool and fade, living out its days as the mere ghost of a once-vast red giant star.🧐😲

Images by - ESO Comic Gems Programme.

22/01/2019

😁😁

02/11/2018

WoW

An amazing Cricket Match between the Applied Physics Faculty and Students of DEPTH.

15/10/2018

Mathematics...

13/10/2018

Everything is physics , physics is everything

07/10/2018

Happy birthday legend

28/09/2018

Excited huh?

Go into your backyard about 20:30 p.m. EST or thereabouts this weekend and you can see the most incredible thing – the Andromeda

22/09/2018

Nature is tough!

22/09/2018

Physics can be described simply as the study of our universe and an equation as a piece of maths relating physical quantities e.g.

15/09/2018

MACS J0717 is one of the strangest (astronomically-speaking) galaxies on the list of weird galaxies. Technically a galaxy cluster, MACS J0717 was formed by the collision of four other galaxies. A stream of galaxies, gas, and dark matter over 13 million light-years long are colliding in an area already dense with the matter, creating fascinating images for us to see.
BTW Look carefully! It looks like a pink female surfer is falling off her surfboard!
lol! 😂😂