What if Planet 9 is a Primordial Black Hole?
2019/09/24 by Jakub Scholtz, James Unwin · 10 voices · 7 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Stellar, planetary, and galactic studies #Cosmology and Gravitation Theories
paper · pdf · doi:10.1103/physrevlett.125.051103
Abstract
We highlight that the anomalous orbits of trans-Neptunian objects (TNOs) and an excess in microlensing events in the 5-year Optical Gravitational Lensing Experiment data set can be simultaneously explained by a new population of astrophysical bodies with mass several times that of the Earth (M⊕). We take these objects to be primordial black holes (PBHs) and point out the orbits of TNOs would be altered if one of these PBHs was captured by the Solar System, inline with the Planet 9 hypothesis. Capture of a free floating planet is a leading explanation for the origin of Planet 9, and we show that the probability of capturing a PBH instead is comparable. The observational constraints on a PBH in the outer Solar System significantly differ from the case of a new ninth planet. This scenario could be confirmed through annihilation signals from the dark matter microhalo around the PBH.
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Discussions
- What If Planet 9 Is a Primordial Black Hole? [hn, 285 points, 345 comments]
- What if Planet 9 is a Primordial Black Hole? (2019) [hn, 159 points, 153 comments]
- What if Planet 9 is a Primordial Black Hole? (2019) [hn, 117 points, 177 comments]
- Во-первых, обнаружил в книге Семихатова копию легендарного «изображения в натуральную величину в астрофизической статье» (восходит к arxiv.org/pdf/1909.11090) [bsky, 14 points, 1 comments]
- Reminds me of this paper featuring a lifesized black hole arxiv.org/abs/1909.110... [bsky, 10 points, 1 comments]
- This paper asks the question "What if Planet 9 is a Primordial Black Hole". And includes a 1:1 scale diagram of the size of a 5 earth mass black hole. (Planet 9 is the hypothetical 9th planet in the [bsky, 2 points, 3 comments]
- Reminds me of one of my favorite figures from a paper: arxiv.org/abs/1909.11090 [bsky, 1 points, 0 comments]
- ぱっと出てくる胃に入りそうな10cmのオーダーのブラックホールだと5倍の地球質量なのでもしそれが体内に固定できるなら地球と勝負しても加速度は自分を向きそう （実物大の図があるよ arxiv.org/abs/1909.11090 [bsky, 1 points, 0 comments]
- Today's gem on @arxiv , by Jakub Scholtz and James Unwin. (Tx @TimonEmken ): A one-dot image. https://arxiv.org/abs/1909.11090 Demonstrates that people still think of scientific papers as the (A4-size [bsky, 0 points, 1 comments]
- What if Planet 9 is a Primordial Black Hole (PBH)? PBH's are black holes that formed soon after the Big Bang, and one may be lurking in the Solar System. "This scenario could be confirmed through anni [bsky, 0 points, 0 comments]
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