White Dwarf ZTF J1901+1458
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White Dwarf ZTF J1901+1458
An interesting one this and a good explanation from PBS
The original press release
https://www.caltech.edu/about/news/a-wh ... n-the-edge
And the arxiv link to the paper
https://arxiv.org/pdf/2107.08458.pdf
The original thread here
viewtopic.php?f=74&t=19083&p=158822&hil ... rf#p158822
The original press release
https://www.caltech.edu/about/news/a-wh ... n-the-edge
And the arxiv link to the paper
https://arxiv.org/pdf/2107.08458.pdf
The original thread here
viewtopic.php?f=74&t=19083&p=158822&hil ... rf#p158822
Arry (Bortle 7 area)
Telescopes: Sky-Watcher ED72II, Sky-Watcher PDS130, Sky-Explorer SN F4 200mm astrograph and Vixen F11.1 90mm
Cameras: Nikon D5300 modded, Canon Kiss X8i modded, Cooled Canon kiss X4 modded, Atik 16IC and 383 colour, ASI120MC, QHY5LII
Mount: Sky-Explorer HEQ 5 belt driven
Telescopes: Sky-Watcher ED72II, Sky-Watcher PDS130, Sky-Explorer SN F4 200mm astrograph and Vixen F11.1 90mm
Cameras: Nikon D5300 modded, Canon Kiss X8i modded, Cooled Canon kiss X4 modded, Atik 16IC and 383 colour, ASI120MC, QHY5LII
Mount: Sky-Explorer HEQ 5 belt driven
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Re: White Dwarf ZTF J1901+1458
Thanks for posting this truly excellent video explanation of this decidedly odd object and its cosmological ramifications. The pdf is very interesting too. The video has added value in that it mentions the possible consequences for dark energy systematic errors which is not mentioned in the paper.
Scopes: Refs: Orion ST80, SV 80EDA f7, TS 102ED f11 Newts: AWB 130mm, f5, Z12 f5; Cats: VMC110L, Intes MK66,VMC200L f9.75 EPs: KK Fujiyama Orthoscopics, 2x Vixen NPLs (40-6mm) and BCOs, Baader Mark IV zooms, TV Panoptics, Delos, Plossl 32-8mm. Mixed brand Masuyama/Astroplans Binoculars: Nikon Aculon 10x50, Celestron 15x70, Baader Maxbright. Mounts: Star Seeker IV, Vixen Porta II, Celestron CG5
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