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    <title>astrophysics &amp;mdash; CosmoPhys</title>
    <link>https://qua.name/cosmophys/tag:astrophysics</link>
    <description>Primarily About Cosmology, Astrophysics, and Theoretical Physics</description>
    <pubDate>Fri, 17 Apr 2026 04:14:04 +0200</pubDate>
    <item>
      <title>Cosmic Distance Ladder</title>
      <link>https://qua.name/cosmophys/cosmic-distance-ladder</link>
      <description>&lt;![CDATA[The graphic below is from page 49 of the paper a href=&#34;https://arxiv.org/abs/1604.01424&#34;A 2.4% Determination of the Local Value of the Hubble Constant [arxiv:1604.01424]/a&#xA;cosmicdistanceladder_01&#xA;&#xA;Some articles about the cosmic distance ladder:&#xA;Cosmology is in crisis about how to measure the universe, by Sarah Scoles&#xA;Why Cosmology’s Expanding Universe Controversy Is An Even Bigger Problem Than You Realize, by Ethan Siegel&#xA;&#xA;Other references:&#xA;Slides from a talk by Stefano Casertano: Gaia DR2 and beyond: contributions to the local distance  scale&#xA;Additional materials from the Oct. 2018 KICP workshop: The Future of Hsub0/sub: Crisis or Concordance&#xA;&#xA;#cosmology #astrophysics&#xA;]]&gt;</description>
      <content:encoded><![CDATA[<p>The graphic below is from page 49 of the paper <a href="https://arxiv.org/abs/1604.01424" rel="nofollow">A 2.4% Determination of the Local Value of the Hubble Constant [arxiv:1604.01424]</a>
<img src="https://i.snap.as/jkKtuur.png" alt="cosmic_distance_ladder_01"></p>

<p>Some articles about the cosmic distance ladder:
<a href="https://www.wired.com/story/cosmology-is-in-crisis-over-how-to-measure-the-universe/" rel="nofollow">Cosmology is in crisis about how to measure the universe</a>, by Sarah Scoles
<a href="https://medium.com/starts-with-a-bang/why-cosmologys-expanding-universe-controversy-is-an-even-bigger-problem-than-you-realize-eb09258879e1" rel="nofollow">Why Cosmology’s Expanding Universe Controversy Is An Even Bigger Problem Than You Realize</a>, by Ethan Siegel</p>

<p>Other references:
Slides from a talk by Stefano Casertano: <a href="https://kicp-workshops.uchicago.edu/2018-LCDM/depot/talk-casertano-stefano.pdf" rel="nofollow">Gaia DR2 and beyond: contributions to the local distance  scale</a>
Additional materials from the Oct. 2018 <a href="http://kicp.uchicago.edu/" rel="nofollow">KICP</a> workshop: <a href="https://kicp-workshops.uchicago.edu/2018-LCDM/presentations.php" rel="nofollow">The Future of H<sub>0</sub>: Crisis or Concordance</a></p>

<p><a href="/cosmophys/tag:cosmology" class="hashtag" rel="nofollow"><span>#</span><span class="p-category">cosmology</span></a> <a href="/cosmophys/tag:astrophysics" class="hashtag" rel="nofollow"><span>#</span><span class="p-category">astrophysics</span></a></p>
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      <guid>https://qua.name/cosmophys/cosmic-distance-ladder</guid>
      <pubDate>Tue, 19 Mar 2019 23:07:45 +0100</pubDate>
    </item>
    <item>
      <title>Articles Index</title>
      <link>https://qua.name/cosmophys/articles-index</link>
      <description>&lt;![CDATA[#astrophysics | #cosmology | #physics&#xA;&#xA;bArticles:/b&#xA;Cosmology Resource Materials&#xA;Cosmological Parameters&#xA;Cosmic Distance Ladder&#xA;Probes of Dark Energy&#xA;Graphic Images Illustrating the Hubble Constant Tension&#xA;Some Common Physics Misconceptions&#xA;Search arXiv and INSPIRE-HEP&#xA;\#posts: 7]]&gt;</description>
      <content:encoded><![CDATA[<p><a href="https://qua.name/cosmophys/tag:astrophysics" rel="nofollow"><a href="/cosmophys/tag:astrophysics" class="hashtag" rel="nofollow"><span>#</span><span class="p-category">astrophysics</span></a></a> | <a href="https://qua.name/cosmophys/tag:cosmology" rel="nofollow"><a href="/cosmophys/tag:cosmology" class="hashtag" rel="nofollow"><span>#</span><span class="p-category">cosmology</span></a></a> | <a href="https://qua.name/cosmophys/tag:physics" rel="nofollow"><a href="/cosmophys/tag:physics" class="hashtag" rel="nofollow"><span>#</span><span class="p-category">physics</span></a></a></p>

<p><b>Articles:</b>
<a href="https://qua.name/cosmophys/cosmology-resource-materials" rel="nofollow">Cosmology Resource Materials</a>
<a href="https://qua.name/cosmophys/cosmological-parameters" rel="nofollow">Cosmological Parameters</a>
<a href="https://qua.name/cosmophys/cosmic-distance-ladder" rel="nofollow">Cosmic Distance Ladder</a>
<a href="https://qua.name/cosmophys/probes-of-dark-energy" rel="nofollow">Probes of Dark Energy</a>
<a href="https://qua.name/cosmophys/best-graphic-illustrating-the-hubble-constant-tension" rel="nofollow">Graphic Images Illustrating the Hubble Constant Tension</a>
<a href="https://qua.name/cosmophys/some-common-physics-misconceptions" rel="nofollow">Some Common Physics Misconceptions</a>
<a href="https://qua.name/cosmophys/search-arxiv-and-inspirehep" rel="nofollow">Search arXiv and INSPIRE-HEP</a>
#posts: 7</p>
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      <guid>https://qua.name/cosmophys/articles-index</guid>
      <pubDate>Sun, 10 Feb 2019 23:07:27 +0100</pubDate>
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