Tadafumi Matsuno
@tada-matsuno.bsky.social
Astronomer
NAOJ / SOKENDAI -> Kapteyn -> Heidelberg
NAOJ / SOKENDAI -> Kapteyn -> Heidelberg
There are also a few other recent papers that I'm involved in:
arxiv.org/abs/2502.17353
arxiv.org/abs/2502.09710
arxiv.org/abs/2502.17319
Please check them out as well!
arxiv.org/abs/2502.17353
arxiv.org/abs/2502.09710
arxiv.org/abs/2502.17319
Please check them out as well!
Chemical characterisation of small substructures in the local stellar halo
The local stellar halo of the Milky Way is known to contain the debris from accreted dwarf galaxies and globular clusters, in the form of stellar streams and over-densities in the space of orbital pro...
arxiv.org
February 27, 2025 at 8:37 AM
There are also a few other recent papers that I'm involved in:
arxiv.org/abs/2502.17353
arxiv.org/abs/2502.09710
arxiv.org/abs/2502.17319
Please check them out as well!
arxiv.org/abs/2502.17353
arxiv.org/abs/2502.09710
arxiv.org/abs/2502.17319
Please check them out as well!
I'm very excited to share our new work! arxiv.org/abs/2502.18552 , in which we discussed abundance patterns of some unevolved Li-rich stars with low metallicity. We discussed their possible formation paths, including pollution from AGB stars and nova.
Unevolved Li-rich stars at low metallicity: a possible formation pathway through novae
A small fraction of low-mass stars have been found to have anomalously high Li abundances. Although it has been suggested that mixing during the red giant branch phase can lead to Li production, this ...
arxiv.org
February 27, 2025 at 8:35 AM
I'm very excited to share our new work! arxiv.org/abs/2502.18552 , in which we discussed abundance patterns of some unevolved Li-rich stars with low metallicity. We discussed their possible formation paths, including pollution from AGB stars and nova.
Reposted by Tadafumi Matsuno
Tired of wondering which atomic lines are in your spectra? You need:
*whose line is it anyway?* An interactive tool for identifying atomic spectral lines. 🧪🔭 #stars
install:
pip install whoseline
source:
github.com/bmorris3/who...
*whose line is it anyway?* An interactive tool for identifying atomic spectral lines. 🧪🔭 #stars
install:
pip install whoseline
source:
github.com/bmorris3/who...
February 24, 2025 at 6:11 PM
Tired of wondering which atomic lines are in your spectra? You need:
*whose line is it anyway?* An interactive tool for identifying atomic spectral lines. 🧪🔭 #stars
install:
pip install whoseline
source:
github.com/bmorris3/who...
*whose line is it anyway?* An interactive tool for identifying atomic spectral lines. 🧪🔭 #stars
install:
pip install whoseline
source:
github.com/bmorris3/who...
Reposted by Tadafumi Matsuno
Paper now published! 🎉 There are two fun new figures, showing how carbon-enhanced stars are offset from normal stars in the CMD (not a new result, but neat to see with this data) ✨ academic.oup.com/mnras/articl...
(incl. mention to colour in figure descriptions...)
(incl. mention to colour in figure descriptions...)
February 6, 2025 at 10:11 AM
Paper now published! 🎉 There are two fun new figures, showing how carbon-enhanced stars are offset from normal stars in the CMD (not a new result, but neat to see with this data) ✨ academic.oup.com/mnras/articl...
(incl. mention to colour in figure descriptions...)
(incl. mention to colour in figure descriptions...)
Is anyone else having issues with connecting to A&A website?
November 23, 2023 at 3:26 PM
Is anyone else having issues with connecting to A&A website?
And, I'm excited to announce that I'm joining Astronomisches Rechen-Institut (ARI) at Heidelberg University as a Gliese fellow. Please drop by if you visit Heidelberg!
October 1, 2023 at 8:20 PM
And, I'm excited to announce that I'm joining Astronomisches Rechen-Institut (ARI) at Heidelberg University as a Gliese fellow. Please drop by if you visit Heidelberg!
Sadly, I left Kapteyn Institute last week. It was a wonderful 3.5 years, even though the beginning was a bit unusual time. I learned so many things through lively discussions that happen almost every day. I will definitely miss them!
October 1, 2023 at 8:20 PM
Sadly, I left Kapteyn Institute last week. It was a wonderful 3.5 years, even though the beginning was a bit unusual time. I learned so many things through lively discussions that happen almost every day. I will definitely miss them!
Reposted by Tadafumi Matsuno
Very happy to share my new paper on arxiv: arxiv.org/abs/2309.06137 releasing a catalogue of spectroscopic metallicities of VMP stars using the amazing Gaia DR3 RVS spectra. Did you know that there exists a lot of archival VMP spectra out there with no published parameters?
Gaia's brightest very metal-poor (VMP) stars: A metallicity...
Context. Gaia DR3 has offered the scientific community a remarkable dataset of approximately one million spectra acquired with the Radial Velocity Spectrometer (RVS) in the Calcium II triplet...
arxiv.org
September 19, 2023 at 3:20 PM
Very happy to share my new paper on arxiv: arxiv.org/abs/2309.06137 releasing a catalogue of spectroscopic metallicities of VMP stars using the amazing Gaia DR3 RVS spectra. Did you know that there exists a lot of archival VMP spectra out there with no published parameters?