@astro_bert

Astrophysicist @ EPFL. Views expressed entirely my own unless otherwise credited. He/his

 Lausanne, Switzerland
epfl.ch/labs/scd
Joined January 2014
  • Tweets44
  • Following174
  • Followers131
13Media
Richard Anderson retweeted
Dan Scolnic
@DScol8 Nov 2025
A cosmology paper has gone viral (see @guardian link) - because of its big claims and press release. Here's a thread for what its big problems are. theguardian.com/science/2025…

Universe expansion may be slowing, not accelerating, study suggests

Astronomers cast doubt on Nobel prize-winning theory and suggest universe could end in ‘big crunch’

theguardian.com
4
23
4
61
9,701
Richard Anderson retweeted
A&A journal@AandA_journal17 Apr 2023
EPFL press release: A new measurement could change our understanding of the Universe actu.epfl.ch/news/a-new-meas… Article by Cruz Reyes et al.: aanda.org/10.1051/0004-6361/…
1
3
547
Richard Anderson retweeted
arXiver@arXiver17 Apr 2023
Investigating Gaia EDR3 parallax systematics using asteroseismology of Cool Giant Stars observed by... [SSA] arxiver.moonhats.com/2023/04…
2
11
2,093
[2304.07158] Saniya Khan, Andrea Miglio, Emma Willett et al.: Investigating Gaia EDR3 parallax systematics using asteroseismology of Cool Giant Stars observed by Kepler, K2, and TESS I. Asteroseismic distances ... arxiv.org/abs/2304.07158 arxiv.org/pdf/2304.07158.pdf #astro_ph_SR
2
1
4
485
Richard Anderson retweeted
Dan Scolnic
@DScol9 Mar 2023
New paper by Anderson et al. that re-examines TRGB LMC measurement gets higher H0 of 71.8+-1.5. Neatest to me is stars around tip are variable and break into two classes of variability at 4+ sigma. Shows TRGB are standardizable, not standard candles. arxiv.org/abs/2303.04790
2
4
16
1,183
Thanks so much to Jim Peebles, Michel Mayor, @Astroclaude, @Galactic_Chloe, Michaela Hirschmann, @jpkneib, the audience, and everyone at @EPFLevents for a very special evening on Our Place in the Cosmos! Recording of the presentations & discussion here: youtube.com/watch?v=W5_oa3G7…
5
6
Anyone can now submit & vote for questions for the 18 May event "our place in the cosmos - from the Big Bang to life on other earths" with James Peebles and Michel Mayor via Slido here: bit.ly/3LeaLJO Event: bit.ly/3soDcOD @Lastro_Epfl @EPFL_en @EPFLevents
1
Join us for a very special public conference on "our place in the cosmos - from the Big Bang to life on other earths" featuring 2019 Physics Nobel laureates James Peebles and Michel Mayor live via YouTube on Wed 18 May. bit.ly/3soDcOD @Lastro_Epfl @EPFL_en @EPFLevents
1
4
Merry Launchmas everyone!
Echte Aufnahme des James-Webb-Space-Telescopes nach der Trennung von der letzten Raketenstufe mit der Erde im Hintergrund

ALT Echte Aufnahme des James-Webb-Space-Telescopes nach der Trennung von der letzten Raketenstufe mit der Erde im Hintergrund

10
1
55
We introduced the now completed #H1PStars team to @Lastro_Epfl & @obsge colleagues. Excited to improve the measurement of cosmic expansion with @shreeya_shetye, @zoispetsieri, @rilasani, Mauricio Cruz Reyes & Giordano Viviani! Thanks @ERC_Research #ERCStG & @snsf_ch #EUfunded
2
13
Richard Anderson retweeted
Massimo
@Rainmaker19732 Jul 2021
This was published 109 years ago [read more: buff.ly/2w85bUR]
60
1,535
156
4,654
It took some time, but here's a report on our @ESO #H02020 e-conference last June. Hopefully this will provide some useful thoughts and inspiration for upcoming online meetings. Thanks to Antoine, Sherry, all SOC members, and all the participants! arxiv.org/abs/2104.00089
3
10
Two #EUfunded postdoc positions in observational astrophysics at EPFL in Switzerland. We're looking for photometrists and spectroscopists to help measure the Hubble constant to 1% & solve a cosmic riddle. Funding by #ERCStG @ERC_Research @EU_H2020 @snf_ch jobregister.aas.org/ad/6ceb6…
1
1
4
Today’s speech by ERC President Jean-Pierre Bourguignon on the future of Europe’s research & innovation and the long-term #EUbudget - delivered to the European Parliament. Read it here ⬇️ erc.europa.eu/news/hearing-i… #MFF #InvestEUresearch #NextGenerationEU #ITRE @EP_Industry
4
313
118
340
Thanks a lot @DataAnatomist for your summaries!!
Behnam Javanmardi@Javanmardi_B25 Jun 2020
A summary of day three of @ESO #H02020 meeting, including talks from @tamarastro, K. Wong, D. Pesce, and @bernardfschutz, plus discussions with S. Suyu, S. Birrer, @astro_bert, and @Ofer_Lahav. behnamjavanmardi.com/2020/06…
1
The final day of #H02020 @ESO e-conference is live streaming on YouTube now: youtube.com/watch?v=p4-pIp1K… Program here: eso.org/sci/meetings/2020/H0…
1
4
5
Shoutout to @jrdmb for creating a @reddit summary of the daily #H02020 sessions! Thanks! old.reddit.com/r/cosmology/c…
1
6
Day 4 of the #H02020 @ESO e-conference is about to start in about 1 hour. Today we will connect the H0 discord with other cosmological tensions by going back in time towards the early Universe and talking about theoretical explanations. Program link: eso.org/sci/meetings/2020/H0…
2
A view from the #H02020 control center
1
12
#H02020 is live now, meeting will begin at 12:55 UTC today. Live stream here: youtu.be/KPiL07muI2k
Load more