Astronomy and Astrophysics Newsletter

Astronomy and astrophysics are among the most rapidly growing areas in modern science with several seminal discoveries over the past two decades. These have opened up a plethora of enigmas to be understood especially in cosmology, high energy astrophysics, several aspects of stellar evolution, planetary and stellar formation, earliest stars and galaxies, to name a few. The sun and the solar system are also replete with puzzles.

In this Astronomy and Astrophysics Newsletter we hope to cover many recent developments and understanding of the above areas. Both theoretical and observational advances will be highlighted. We have introduced a section "Ask an astronomer" where people can ask doubts regarding astronomy and will be answered in this section. The newsletter will be published every two months and has been circulating successfully among the astrophysics and astrobiology enthusiasts. Looking forward for people to contribute to the newsletter as well.

Those who are interested and would like to read or write articles may contact me through mail : kiren.ov@res.christuniversity.in 

Contents for 2021-22 Newsletters are given below.

Volume 2, Number 3, MAY-JUNE 2021 Contents

1. Continuous gravitational waves

2. The advance of Newtonian perihelion in Newtonian gravity

3. Hubble tension : A case for modified gravity

4. Ancients in the sky

5. Discovery of reconnection nanojets in solar corona

6. Chinese rover successfully lands on moon

7. High energy light from small galaxies

8. Cache of dwarf galaxies detected

9. DESI : Search for Dark Energy

10. Answer to "Ask an Astronomer puzzle".

Volume 2, Number 2, MARCH-APRIL 2021 Contents

1. DOES PLANET NINE EXIST OR NOT?

2. HUNDRED YEARS OF SAHA EQUATION

3. ICECUBE DETECTS 6.3 PeV NEUTRINO

4. DIMMING OF HYPERGIANT VY CANIS MAJORIS

5. CLUMP OF BLACK HOLES IN NGC 6397

6. FIRST BLACK HOLE DETECTED IS MORE MASSIVE THAN PREVIOUSLY ESTIMATED

7. DWARF GALAXY WITH MORE DARK MATTER THAN EXPECTED

8. ASTRONOMERS DETECT MOVEMENT OF SMBH IN J0437+2456

9. AN ASTRONOMICAL PUZZLE

10. ASTRONOMICAL TROUBLESHOOTING

11. WHAT IF THE ELECTRON ELECTRIC CHARGE WAS DIFFERENT

12. WHAT IF Li4 WAS STABLE

13. ASK AN ASTRONOMER

Volume 2, Number 1, January-February 2021 Contents

1. CASE OF MODIFIED GRAVITY TO EXPLAIN ROTATIONALLY SUPPORTED GALAXIES

2. OBSERVATION OF SUPER CHANDRASEKHAR OBJECT

3. STUDY OF EIGHT BINARY MILLISECOND PULSAR

4. EXISTENCE OF KOI-5Ab CONFIRMED

5. GAMMA RAY DETECTING SATELLITES LAUNCHED BY CHINA

6. MAGNETAR FLARE IN NGC 253

7. YOUNGEST MAGNETAR DETECTED

8. MOST DISTANT QUASAR DETECTED

9. EARTH CLOSER TO THE CENTER OF MILKY WAY THAN PREVIOUS ESTIMATES

10. IMAGE OF DAZZLING SUPERNOVA PRONE 'FIREWORKS GALAXY' NGC 6946 CAPTURED

11. DYING GALAXY ID2299

12. THEIA 456 - STRING OF STARS IN MILKY WAY

13. SEXTUPLE STAR SYSTEM

14. STARLINK SATELLITES SMEAR, SMUDGE STEAK STAR IMAGES

15. WHAT IF THE ELECTRON AND PROTON DID NOT HAVE EXACTLY EQUAL MAGNITUDE OF ELECTRIC CHARGE

16. WHAT IF THE BOND NUMBERS WERE NOT 0.007?

17. ASK AN ASTRONOMER

18. ONLINE RESOURCE - HIGH ENERGY PROTONS