Ziang Yan
@ziangyan.bsky.social
颜子昂 | Studying the Universe@RUB | Enjoying classical music, yodeling song and cooking | Building my body | From Hunan, 🇨🇳 | https://yanzastro.github.io/
Reposted by Ziang Yan
KiDS Legacy - The Final Cosmology Results
YouTube video by Cosmology Talks
youtu.be
March 26, 2025 at 11:30 AM
Reposted by Ziang Yan
Reposted by Ziang Yan
🥳 It's paper day for the completed #ESO Kilo-Degree Survey. We end our journey with a consistent picture of #cosmology 😲
I've been co-leading KiDS for 12yrs & I'm so proud of what the team's achieved. If you're at the #Euclid meet, go to Angus Wright's talk @10am today!🔭
ℹ️: arxiv.org/pdf/2503.19441
I've been co-leading KiDS for 12yrs & I'm so proud of what the team's achieved. If you're at the #Euclid meet, go to Angus Wright's talk @10am today!🔭
ℹ️: arxiv.org/pdf/2503.19441
March 26, 2025 at 8:01 AM
🥳 It's paper day for the completed #ESO Kilo-Degree Survey. We end our journey with a consistent picture of #cosmology 😲
I've been co-leading KiDS for 12yrs & I'm so proud of what the team's achieved. If you're at the #Euclid meet, go to Angus Wright's talk @10am today!🔭
ℹ️: arxiv.org/pdf/2503.19441
I've been co-leading KiDS for 12yrs & I'm so proud of what the team's achieved. If you're at the #Euclid meet, go to Angus Wright's talk @10am today!🔭
ℹ️: arxiv.org/pdf/2503.19441
March, 2025 will be remembered in the history of cosmology🤣
March 20, 2025 at 10:10 AM
March, 2025 will be remembered in the history of cosmology🤣
Reposted by Ziang Yan
LOOK AT THIS BEAUTY! 🤩
Euclid is incredible! I really cannot believe how amazing this telescope is!
Euclid is incredible! I really cannot believe how amazing this telescope is!
The new EULICD data release is AMAZING! 🔭
Here's a before / after of a random galaxy I found in one of the new images, comparing against the Digitized Sky Survey.
I highly recommend taking a look around on ESA Sky - it's fun! Link: sky.esa.int/esasky/?targ...
Here's a before / after of a random galaxy I found in one of the new images, comparing against the Digitized Sky Survey.
I highly recommend taking a look around on ESA Sky - it's fun! Link: sky.esa.int/esasky/?targ...
March 19, 2025 at 3:30 PM
LOOK AT THIS BEAUTY! 🤩
Euclid is incredible! I really cannot believe how amazing this telescope is!
Euclid is incredible! I really cannot believe how amazing this telescope is!
My application season is finally concluded! This autumn, I will start a new postdoc position at Kobayashi-Maskawa Institute for the Origin of Particles and the Universe (KMI), Nagoya University.
February 18, 2025 at 3:28 PM
My application season is finally concluded! This autumn, I will start a new postdoc position at Kobayashi-Maskawa Institute for the Origin of Particles and the Universe (KMI), Nagoya University.
almost exhausted in this job seeking season but fortunately it's going to be over🙏🏻🙏🏻🙏🏻
February 2, 2025 at 6:48 PM
almost exhausted in this job seeking season but fortunately it's going to be over🙏🏻🙏🏻🙏🏻
Some employers/institutes do not accept applicant from "designated countries". Should they still call themself "Equal Opportunity Employer"?
December 20, 2024 at 9:55 AM
Some employers/institutes do not accept applicant from "designated countries". Should they still call themself "Equal Opportunity Employer"?
No other composer has cured my anxiety better than Anton Bruckner. youtu.be/elVHvTrEM34?...
Bruckner Symphony No 8 Celibidache Münchner Philharmoniker Live Tokyo 20 Oct 1990
YouTube video by 1Furtwangler
youtu.be
December 15, 2024 at 11:34 PM
No other composer has cured my anxiety better than Anton Bruckner. youtu.be/elVHvTrEM34?...
Many US-based postdoc positions this year are 1-year extendable. This poses problems for researchers who need visas to (re-)enter the US. Unlike Canada or Germany, one needs to leave the US to apply for a visa extension which could result in endless "administrative processing" (1/2).
December 15, 2024 at 9:40 PM
Many US-based postdoc positions this year are 1-year extendable. This poses problems for researchers who need visas to (re-)enter the US. Unlike Canada or Germany, one needs to leave the US to apply for a visa extension which could result in endless "administrative processing" (1/2).
Astrobetter is a great website but it cannot make me feel any better :( I shouldn't have watched it but I cannot restrain myself 🫤
December 15, 2024 at 1:52 PM
Astrobetter is a great website but it cannot make me feel any better :( I shouldn't have watched it but I cannot restrain myself 🫤
btw the package name Tiaogeng (调羹) is the Chinese word for “spoon”. “tiao(调)” means to reconcile and “geng (羹)” refers to a Chinese-style thick soup. The code reconciles the unevenly observed sky, just as a tiaogeng stirs soup to make it taste more balanced and delicious.
The galaxy distribution corrected by OR yields an accurate estimation of the 2PCF. The code is published on github (github.com/yanzastro/ti...) for future usage. (3/3)
October 31, 2024 at 6:12 AM
btw the package name Tiaogeng (调羹) is the Chinese word for “spoon”. “tiao(调)” means to reconcile and “geng (羹)” refers to a Chinese-style thick soup. The code reconciles the unevenly observed sky, just as a tiaogeng stirs soup to make it taste more balanced and delicious.
The galaxy distribution corrected by OR yields an accurate estimation of the 2PCF. The code is published on github (github.com/yanzastro/ti...) for future usage. (3/3)
October 31, 2024 at 6:09 AM
The galaxy distribution corrected by OR yields an accurate estimation of the 2PCF. The code is published on github (github.com/yanzastro/ti...) for future usage. (3/3)
... by about an order of magnitude. To correct this bias, we employ an unsupervised machine learning method to recover an "organised random" (OR) that presents the same selection effects. (2/3)
Paper day! (arxiv.org/abs/2410.23141) In this paper, we present a blinded measurement of the angular two-point correlation function (2PCF) from the KiDS-Legacy catalogue. We find that variable depth in the data due to complex selection effects, can significantly overestimate the 2PCF...(1/3)
KiDS-Legacy: angular galaxy clustering from deep surveys with complex selection effects
Photometric galaxy surveys, despite their limited resolution along the line of sight, encode rich information about the large-scale structure (LSS) of the Universe thanks to the large number density a...
arxiv.org
October 31, 2024 at 6:08 AM
... by about an order of magnitude. To correct this bias, we employ an unsupervised machine learning method to recover an "organised random" (OR) that presents the same selection effects. (2/3)
Paper day! (arxiv.org/abs/2410.23141) In this paper, we present a blinded measurement of the angular two-point correlation function (2PCF) from the KiDS-Legacy catalogue. We find that variable depth in the data due to complex selection effects, can significantly overestimate the 2PCF...(1/3)
KiDS-Legacy: angular galaxy clustering from deep surveys with complex selection effects
Photometric galaxy surveys, despite their limited resolution along the line of sight, encode rich information about the large-scale structure (LSS) of the Universe thanks to the large number density a...
arxiv.org
October 31, 2024 at 6:08 AM
Paper day! (arxiv.org/abs/2410.23141) In this paper, we present a blinded measurement of the angular two-point correlation function (2PCF) from the KiDS-Legacy catalogue. We find that variable depth in the data due to complex selection effects, can significantly overestimate the 2PCF...(1/3)
Reposted by Ziang Yan
Photons, meet the Commissioning Camera 🤝
On October 24, Rubin staff successfully completed the first end-to-end on-sky test of the full telescope system using the testing camera — from capturing the sky to transferring data to SLAC! 🔭🧪
🔗: https://rubinobservatory.org/news/test-camera-sees-sky
On October 24, Rubin staff successfully completed the first end-to-end on-sky test of the full telescope system using the testing camera — from capturing the sky to transferring data to SLAC! 🔭🧪
🔗: https://rubinobservatory.org/news/test-camera-sees-sky
October 29, 2024 at 8:43 AM
Photons, meet the Commissioning Camera 🤝
On October 24, Rubin staff successfully completed the first end-to-end on-sky test of the full telescope system using the testing camera — from capturing the sky to transferring data to SLAC! 🔭🧪
🔗: https://rubinobservatory.org/news/test-camera-sees-sky
On October 24, Rubin staff successfully completed the first end-to-end on-sky test of the full telescope system using the testing camera — from capturing the sky to transferring data to SLAC! 🔭🧪
🔗: https://rubinobservatory.org/news/test-camera-sees-sky
I just started reading this book and fell in love with it after only a few pages! I laugh so hard and swear this is really what astronomers are usually doing
October 23, 2024 at 9:02 PM
I just started reading this book and fell in love with it after only a few pages! I laugh so hard and swear this is really what astronomers are usually doing
Hi there! I'm currently in the job market for a postdoc in cosmology. My research interests include multi-tracer analyses of large-scale structure and building pipelines for future cosmological surveys. Please check my personal website (yanzastro.github.io) for more details about myself!
Ziang Yan's Homepage
yanzastro.github.io
October 15, 2024 at 10:22 PM
Hi there! I'm currently in the job market for a postdoc in cosmology. My research interests include multi-tracer analyses of large-scale structure and building pipelines for future cosmological surveys. Please check my personal website (yanzastro.github.io) for more details about myself!