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<blockquote style="position: relative; padding-left: 55px;"><section><a href="https://astrodon.social/users/kellylepo/statuses/111047342813112778">Kelly Lepo (kellylepo@astrodon.social)'s status on Wednesday, 13-Sep-2023 01:42:03 JST</a><a href="https://astrodon.social/@kellylepo" title="kellylepo@astrodon.social"><img src="https://gnusocial.jp/avatar/28639-48-20221116180105.webp" width="48" height="48" alt="Kelly Lepo" style="position: absolute; left: 0; top: 0;">Kelly Lepo</a><div><a href="https://astrodon.social/@kellylepo/111047278073351982" rel="in-reply-to">in reply to</a></div></section><article><p>Neat results from Rogier Windhorst from JWST PEARLS.</p><p>A type Ia supernova at a redshift of z=1.783 (about 3.7 billion years ago) showed up as multiple images in a galaxy warped by gravitational lensing.</p><p>Webb's first deep field, SMACS 0723, is rather close to the Magellanic clouds, so there are more stars in the foreground from the Magellanic stream than an area of the sky 180 degrees away.</p><p><a href="https://astrodon.social/tags/JWSTYearOne" rel="tag">#JWSTYearOne</a></p></article><footer><a rel="bookmark" href="https://gnusocial.jp/conversation/2052104#notice-4026650">In conversation</a><time datetime="2023-09-13T01:42:03+09:00" title="Wednesday, 13-Sep-2023 01:42:03 JST">about a year ago</time> <span>from <span><a href="https://astrodon.social/@kellylepo/111047342813112778" rel="external" title="Sent from astrodon.social via ActivityPub">astrodon.social</a></span></span><a href="https://astrodon.social/@kellylepo/111047342813112778">permalink</a><h4>Attachments</h4><ol><li><label><a rel="external" href="https://gnusocial.jp/attachment/1511977">Image of a lensed galaxy cluster, blow up image shows lensed arc of a galaxy three bright spots, a supernova.
NIRCam in G165 shows: 3 bright point sources parity-flipped w.r.t. Arc-2: Clear SN-la at z=1.783! (LBT, NIRSpec; Polletta, 2023, A&amp;AL, 675, L4; astro-ph/2306.12385); ® 3-epoch G165: 9 data-point light-curve! — suitable to measure Hj at z=1.783 (Frye+23; Chen+23: Foo123; Pascale+23: Pierel+23); — Regular monitoring of clusters with extreme SF can yield more lensed SNe! e Total SFR~200-350 M /yr should give a lensed SN every few years.</a></label><br><a href="https://cdn.masto.host/astrodonsocial/media_attachments/files/111/047/306/092/872/337/original/241e0ebda29745f0.png" rel="external">https://cdn.masto.host/astrodonsocial/media_attachments/files/111/047/306/092/872/337/original/241e0ebda29745f0.png</a></li><li><label><a rel="external" href="https://gnusocial.jp/attachment/1511978">Three graphs showing plots of various properties of stars in the SMACS 0723 field. Map showing the location of Webb's first deep field, SMACS 0723, and the Magallenic clouds and Magallenic stream. 
Summers, J., etal. (astro-ph/2306.13037): SMACS0723 star counts show excess near LMC/SMC compared to NEP; 71 stars (ABX27) with D_spectype~240-100 kpc about 10° from LMC; Part of Leading Arm between LMC and MW: 10 mag fainter than Gaia!</a></label><br><a href="https://cdn.masto.host/astrodonsocial/media_attachments/files/111/047/306/285/236/802/original/9b0cad2b4fccdd9e.png" rel="external">https://cdn.masto.host/astrodonsocial/media_attachments/files/111/047/306/285/236/802/original/9b0cad2b4fccdd9e.png</a></li></ol></footer></blockquote>

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Kelly Lepo (kellylepo@astrodon.social)'s status on Wednesday, 13-Sep-2023 01:42:03 JST Kelly Lepo
in reply to
Neat results from Rogier Windhorst from JWST PEARLS.
A type Ia supernova at a redshift of z=1.783 (about 3.7 billion years ago) showed up as multiple images in a galaxy warped by gravitational lensing.
Webb's first deep field, SMACS 0723, is rather close to the Magellanic clouds, so there are more stars in the foreground from the Magellanic stream than an area of the sky 180 degrees away.
#JWSTYearOne
In conversationabout a year ago from astrodon.socialpermalink
Attachments
1. Image of a lensed galaxy cluster, blow up image shows lensed arc of a galaxy three bright spots, a supernova. NIRCam in G165 shows: 3 bright point sources parity-flipped w.r.t. Arc-2: Clear SN-la at z=1.783! (LBT, NIRSpec; Polletta, 2023, A&AL, 675, L4; astro-ph/2306.12385); ® 3-epoch G165: 9 data-point light-curve! — suitable to measure Hj at z=1.783 (Frye+23; Chen+23: Foo123; Pascale+23: Pierel+23); — Regular monitoring of clusters with extreme SF can yield more lensed SNe! e Total SFR~200-350 M /yr should give a lensed SN every few years.
  https://cdn.masto.host/astrodonsocial/media_attachments/files/111/047/306/092/872/337/original/241e0ebda29745f0.png
2. Three graphs showing plots of various properties of stars in the SMACS 0723 field. Map showing the location of Webb's first deep field, SMACS 0723, and the Magallenic clouds and Magallenic stream. Summers, J., etal. (astro-ph/2306.13037): SMACS0723 star counts show excess near LMC/SMC compared to NEP; 71 stars (ABX27) with D_spectype~240-100 kpc about 10° from LMC; Part of Leading Arm between LMC and MW: 10 mag fainter than Gaia!
  https://cdn.masto.host/astrodonsocial/media_attachments/files/111/047/306/285/236/802/original/9b0cad2b4fccdd9e.png

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