iiinova — where your digital self keeps evolving

Jeyhan Kartaltepe @jeyhan.bsky.social · 05/06/2025

I'm traveling through space!!

Reposted by Jeyhan Kartaltepe

Rochester Institute of Technology @rittigers.bsky.social · 05/06/2025

The international NASA's James Webb Space Telescope COSMOS-Web team, led by @ritscience.bsky.social researchers, has made an unprecedented amount of information available for future discovery! Explore the largest view deep into the #universe through a searchable catalog now available to the public.

rit.edu

COSMOS-Web opens window into universe for scientists and citizens

Supported by RIT’s Jeyhan Kartaltepe, COSMOS-Web—the largest JWST Cycle 1 observation program— has made its full data set publicly available.

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Jeyhan Kartaltepe @jeyhan.bsky.social · 05/06/2025

Our release includes an interactive viewer where you can explore the images, display the spectroscopic redshifts (Khostovan et al. 2025) and information from the photometric catalog (including their full SED, photometric redshift, the cutout images in each filter, and the zPDF).

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Jeyhan Kartaltepe @jeyhan.bsky.social · 05/06/2025

Then, Harish et al. describe the MIRI data reduction and present the galaxy number counts. arxiv.org/abs/2506.03306

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Jeyhan Kartaltepe @jeyhan.bsky.social · 05/06/2025

Along with the data, we have released three papers describing the data reduction and catalog process. First, Franco et al. describe the NIRCam data reduction process and challenges for handling a dataset of this size. arxiv.org/abs/2506.03256

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Jeyhan Kartaltepe @jeyhan.bsky.social · 05/06/2025

It's finally here! We've just released all of our COSMOS-Web images and catalogs, along with an interactive viewer where you can explore the data! Check it out at: cosmos2025.iap.fr

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Reposted by Jeyhan Kartaltepe

Space Telescope Science Institute @stsci.edu · 28/03/2025

Recap some of #NASAWebb’s biggest early-universe discoveries (so far) with the astronomers who are doing the science. 🔭 🧪

youtu.be

The James Webb Space Telescope Reveals the Early Universe

YouTube video by Space Telescope Science Institute

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Reposted by Jeyhan Kartaltepe

arXiv astro-ph.GA Astrophysics of Galaxies @astrophga-bot.bsky.social · 04/03/2025

Ali Ahmad Khostovan, et al.: COSMOS Spectroscopic Redshift Compilation (First Data Release): 165k Redshifts Encompassing Two Decades of Spectroscopy arxiv.org/abs/2503.00120 arxiv.org/pdf/2503.00120 arxiv.org/html/2503.00120

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Jeyhan Kartaltepe @jeyhan.bsky.social · 16/01/2025

My PhD student Rohan Pattnaik's first paper on the machine learning tool he developed to automatically measure redshifts directly from galaxy spectra, SpecPT, is now out. The results are have surpassed my expectations and I can't wait until we extend this to other datasets! arxiv.org/abs/2501.01070

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Reposted by Jeyhan Kartaltepe

Sarah Kendrew @sarahkendrew.bsky.social · 12/07/2023

Here’s Joel Achenbach for the Washington Post on JWST’s first year with nice quotes from @janerigby.bsky.social, @jeyhan.bsky.social, @saturnswings.bsky.social and many more! www.washingtonpost.com/science/2023…

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Reposted by Jeyhan Kartaltepe

Dr. Rebecca Larson @saturnswings.bsky.social · 10/07/2023

Second galaxy to the right and straight on until cosmic dawn! This video takes you on a journey through our CEERS JWST images and cosmic history. Every second we travel 200 Million lightyears into the past on our way to Maisie's Galaxy which existed ~13.4 Billion years ago!

youtube.com

CEERS: Flight to Maisie's Galaxy

This 3D visualization portrays about 5,000 galaxies within a small portion of the CEERS (Cosmic Evolution Early Release Science) Survey, which gathered data ...

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Jeyhan Kartaltepe @jeyhan.bsky.social · 06/07/2023

Ok, I do love that with very little effort, I have a feed for Cat pics!

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Jeyhan Kartaltepe @jeyhan.bsky.social · 06/07/2023

Good to know the tricks! Thanks!

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