Haifeng Wang
@astrohaifeng.bsky.social
Love the Milky Way-Local Universe-Disk Systems-Dark Matter-New Physics with Data-Model-Simulations-Instruments. Love sports and history and travel, etc. Personal ORCID: https://orcid.org/0000-0001-8459-1036
Tomorrow morning's talk, busy week😅
On 15th October at 10:00 am CEST, our IAU H1 club will hold a seminar focused on topics related to the Local Universe and ELT-SHARP plan. Our discussions are generally scheduled for the second Wednesday of each month at either ~10:00 am or 3:00 pm CEST, with some flexibility as needed. See you soon.
October 14, 2025 at 12:19 PM
Tomorrow morning's talk, busy week😅
interesting discussion.
Paper day! My PhD student Mariana Júlio, with @readdark.bsky.social, @pengfeili.bsky.social and others, studies the internal dynamics of dwarf galaxies and finds they don't agree with the Radial Acceleration Relation, challenging the dark matter alternative MOND.
arxiv.org/abs/2510.06905
🔭☄️🧪
1/7
arxiv.org/abs/2510.06905
🔭☄️🧪
1/7
The radial acceleration relation at the EDGE of galaxy formation: testing its universality in low-mass dwarf galaxies
A tight correlation between the baryonic and observed acceleration of galaxies has been reported over a wide range of mass ($10^8 < M_{\rm bar}/{\rm M}_\odot < 10^{11}$) - the Radial Acceleration Rela...
arxiv.org
October 9, 2025 at 11:27 AM
interesting discussion.
Nobel award-Physiology or Medicine.
Nobel Prize in Physiology or Medicine Is Awarded for Work on Immune Systems www.nytimes.com/2025/10/06/h...
Nobel Prize in Physiology or Medicine Is Awarded for Work on Immune Systems www.nytimes.com/2025/10/06/h...
Nobel Prize in Physiology or Medicine Is Awarded for Work on Immune Systems
www.nytimes.com
October 8, 2025 at 1:11 AM
Nobel award-Physiology or Medicine.
Nobel Prize in Physiology or Medicine Is Awarded for Work on Immune Systems www.nytimes.com/2025/10/06/h...
Nobel Prize in Physiology or Medicine Is Awarded for Work on Immune Systems www.nytimes.com/2025/10/06/h...
On 15th October at 10:00 am CEST, our IAU H1 club will hold a seminar focused on topics related to the Local Universe and ELT-SHARP plan. Our discussions are generally scheduled for the second Wednesday of each month at either ~10:00 am or 3:00 pm CEST, with some flexibility as needed. See you soon.
September 30, 2025 at 3:48 AM
On 15th October at 10:00 am CEST, our IAU H1 club will hold a seminar focused on topics related to the Local Universe and ELT-SHARP plan. Our discussions are generally scheduled for the second Wednesday of each month at either ~10:00 am or 3:00 pm CEST, with some flexibility as needed. See you soon.
IAU H1 Seminar, September 15th: Gaia: 10.5 Years of Surveying the Milky Way and Beyond; Anthony Brown;
The full recording is now available to the public. Enjoy!
www.youtube.com/watch?v=2V3Z...
The full recording is now available to the public. Enjoy!
www.youtube.com/watch?v=2V3Z...
IAU H1 Seminar, September 15th: Gaia: 10.5 Years of Surveying the MilkyWay and Beyond
YouTube video by IAU commission H1 "The Local Universe" seminars
www.youtube.com
September 16, 2025 at 7:45 AM
IAU H1 Seminar, September 15th: Gaia: 10.5 Years of Surveying the Milky Way and Beyond; Anthony Brown;
The full recording is now available to the public. Enjoy!
www.youtube.com/watch?v=2V3Z...
The full recording is now available to the public. Enjoy!
www.youtube.com/watch?v=2V3Z...
See you soon today, Join Zoom Meeting:
us06web.zoom.us/j/8528921716...
us06web.zoom.us/j/8528921716...
September 15, 2025 at 1:10 AM
See you soon today, Join Zoom Meeting:
us06web.zoom.us/j/8528921716...
us06web.zoom.us/j/8528921716...
On September 15th at 15:00 (CEST), Anthony Brown will present remarkable progress on the Gaia mission at the IAU H1 Seminar. We look forward to your participation.
September 12, 2025 at 11:21 AM
On September 15th at 15:00 (CEST), Anthony Brown will present remarkable progress on the Gaia mission at the IAU H1 Seminar. We look forward to your participation.
30th Hintze Lecture: Professor Janna Levin & Professor Sir Roger Penrose www.physics.ox.ac.uk/events/30th-...
30th Hintze Lecture: Professor Janna Levin & Professor Sir Roger Penrose
Professor Janna Levin & Professor Sir Roger Penrose will deliver the 30th Hintze Lecture: Black holes in the cosmos
www.physics.ox.ac.uk
September 10, 2025 at 2:49 PM
30th Hintze Lecture: Professor Janna Levin & Professor Sir Roger Penrose www.physics.ox.ac.uk/events/30th-...
July's IAU-H1 Colloquium was truly impressive and insightful.
Please note that the first two slides — the title and outline — are missing from the recording, but this does not affect the scientific content or your overall enjoyment. Thank James.
youtu.be/yi-IkMJ4oAU?...
Please note that the first two slides — the title and outline — are missing from the recording, but this does not affect the scientific content or your overall enjoyment. Thank James.
youtu.be/yi-IkMJ4oAU?...
IAU-H1 2025 July 15th, colloquium (starting from the third page). Title: Modelling galaxies
YouTube video by IAU commission H1 "The Local Universe" seminars
youtu.be
July 17, 2025 at 2:17 AM
July's IAU-H1 Colloquium was truly impressive and insightful.
Please note that the first two slides — the title and outline — are missing from the recording, but this does not affect the scientific content or your overall enjoyment. Thank James.
youtu.be/yi-IkMJ4oAU?...
Please note that the first two slides — the title and outline — are missing from the recording, but this does not affect the scientific content or your overall enjoyment. Thank James.
youtu.be/yi-IkMJ4oAU?...
IAU H1, 15th July, just now I wrote it as June in some other places😀
July 3, 2025 at 10:12 AM
IAU H1, 15th July, just now I wrote it as June in some other places😀
See you on 15th, enjoy Local Universe
July 3, 2025 at 1:57 AM
See you on 15th, enjoy Local Universe
IAU H1 seminar, June 6th, 2025. The full recording of the talk is now available on YouTube. You can watch it via the link below: youtu.be/1Q8P4i2kReU
Have a nice weekend.
Have a nice weekend.
H1 2025 June 6th: The Rise of Gas-Rich Discs in the Early Universe: Clues to the Milky Way’s Origins
YouTube video by IAU commission H1 "The Local Universe" seminars
youtu.be
June 7, 2025 at 9:29 AM
IAU H1 seminar, June 6th, 2025. The full recording of the talk is now available on YouTube. You can watch it via the link below: youtu.be/1Q8P4i2kReU
Have a nice weekend.
Have a nice weekend.
@iau.org.web.brid.gy
The IAU-H1 seminar is starting soon — June 6th at 10:00 AM CEST. Looking forward to seeing you on Friday! If you need the meeting link, feel free to contact me at haifeng.wang.astro@gmail.com or iauinfos@iap.fr
The IAU-H1 seminar is starting soon — June 6th at 10:00 AM CEST. Looking forward to seeing you on Friday! If you need the meeting link, feel free to contact me at haifeng.wang.astro@gmail.com or iauinfos@iap.fr
June 4, 2025 at 4:17 PM
@iau.org.web.brid.gy
The IAU-H1 seminar is starting soon — June 6th at 10:00 AM CEST. Looking forward to seeing you on Friday! If you need the meeting link, feel free to contact me at haifeng.wang.astro@gmail.com or iauinfos@iap.fr
The IAU-H1 seminar is starting soon — June 6th at 10:00 AM CEST. Looking forward to seeing you on Friday! If you need the meeting link, feel free to contact me at haifeng.wang.astro@gmail.com or iauinfos@iap.fr
Alright, let’s move forward together — the IAU-H1 Local Universe seminars are starting soon (June). Looking forward to seeing you there, thanks!🙂🙂🙂🙂
April 30, 2025 at 11:50 AM
Alright, let’s move forward together — the IAU-H1 Local Universe seminars are starting soon (June). Looking forward to seeing you there, thanks!🙂🙂🙂🙂
Reposted by Haifeng Wang
In the month+ since Jeff Bezos announced the WaPo editorial page would be advocating for “personal liberties and free markets,” there have been troubling resignations, at least one (Ann Telnaes) b/c of being silenced. But as of today, no real signs of substantive change.
April 5, 2025 at 12:08 PM
In the month+ since Jeff Bezos announced the WaPo editorial page would be advocating for “personal liberties and free markets,” there have been troubling resignations, at least one (Ann Telnaes) b/c of being silenced. But as of today, no real signs of substantive change.
nice discussion, but I am busy at that time.
Dark matter-MOND virtual debate coming on Monday April 7. Register to attend.
tritonstation.com/2025/04/03/d...
tritonstation.com/2025/04/03/d...
Dark Matter or Modified Gravity? A virtual panel discussion
This is a quick post to announce that on Monday, April 7 there will be a virtual panel discussion about dark matter and MOND involving Scott Dodelson and myself. It will be moderated by Orin Harris…
tritonstation.com
April 5, 2025 at 4:00 AM
nice discussion, but I am busy at that time.
interesting for YOC field
An interesting #galactic paper by Cameren Swiggum (@mac0598.bsky.social) et al. came out today! ☄️🧪
Extending previous work that showed most young star clusters near to the Sun came from just three regions, Cameren shows that actually *all* nearby clusters come from just three regions!
Extending previous work that showed most young star clusters near to the Sun came from just three regions, Cameren shows that actually *all* nearby clusters come from just three regions!
April 5, 2025 at 3:43 AM
interesting for YOC field
Reposted by Haifeng Wang
Things I don’t understand about the universe.
tritonstation.com/2025/03/30/t...
tritonstation.com/2025/03/30/t...
Things I don’t understand in modified dynamics (it’s cosmology)
I’ve been busy, and a bit exhausted, since the long series of posts on structure formation in the early universe. The thing I like about MOND is that it helps me understand – and succes…
tritonstation.com
March 30, 2025 at 6:38 PM
Things I don’t understand about the universe.
tritonstation.com/2025/03/30/t...
tritonstation.com/2025/03/30/t...
Super busy this month at Padova, it seems that there are so many nice progress using DESI and EUCLID, I will digest more next month.
More on our Galaxy Zoo Euclid work in Daily Zooniverse today @zooniverse.bsky.social daily.zooniverse.org/2025/03/20/e... 🔭
Euclid first data release
The team behind the Euclid observatory released their first data yesterday, and Zooniverse projects and participants were especially prominent. Euclid’s mission is to make a map of the whole sky wh…
daily.zooniverse.org
March 21, 2025 at 7:04 AM
Super busy this month at Padova, it seems that there are so many nice progress using DESI and EUCLID, I will digest more next month.
Blog: Two Cosmological Surveys Strengthen Hints That Standard Model of Cosmology Is Wrong Both the Dark Energy Spectroscopic Instrument and Dark Energy Survey find hints of time-varying dark energy url:https://noirlab.edu/public/blog/two-cosmological-surveys/
March 21, 2025 at 6:36 AM
Blog: Two Cosmological Surveys Strengthen Hints That Standard Model of Cosmology Is Wrong Both the Dark Energy Spectroscopic Instrument and Dark Energy Survey find hints of time-varying dark energy url:https://noirlab.edu/public/blog/two-cosmological-surveys/
know more about Gaia
Want to learn more about the impact of @esa.int's Gaia mission on #galactic & Milky Way science?
Retired Gaia project scientist Michael Perryman has written over 200 essays on various topics in Galactic astronomy, at a level accessible to non-experts. They provide a really lovely overview!
Retired Gaia project scientist Michael Perryman has written over 200 essays on various topics in Galactic astronomy, at a level accessible to non-experts. They provide a really lovely overview!
Gaia science essays
Accessible essays on the huge range of scientific results, and other background, from the European Space Agency's Gaia space astrometry mission. Audio interviews with some of the leading scientists an...
www.michaelperryman.co.uk
March 6, 2025 at 4:00 AM
know more about Gaia
Reposted by Haifeng Wang
Paper of the day #2 for me is by Kiyan Tavangar and @adrian.pw, who made a really nice way to model the structure of stellar streams, demonstrated on GD-1. #milkyway
The membership that they get out looks really good! arxiv.org/abs/2502.13236
The membership that they get out looks really good! arxiv.org/abs/2502.13236
February 20, 2025 at 7:34 AM
Paper of the day #2 for me is by Kiyan Tavangar and @adrian.pw, who made a really nice way to model the structure of stellar streams, demonstrated on GD-1. #milkyway
The membership that they get out looks really good! arxiv.org/abs/2502.13236
The membership that they get out looks really good! arxiv.org/abs/2502.13236