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Ba2HCl2 is alpha Niobium phosphide-derived structured and crystallizes in the tetragonal P4/mmm space group. The structure is zero-dimensional and consists of one Ba2HCl2 cluster. Ba is bonded in a linear geometry to one H and one Cl atom. The Ba–H bond length is 2.53 Å. The Ba–Cl bond length is 2.71 Å. H is bonded in a linear geometry to two equivalent Ba atoms. Cl is bonded in a single-bond geometry to one Ba atom.
The IceCube Neutrino Observatory has observed extragalactic astrophysical neutrinos with an apparently isotropic distribution. Only a small fraction of the observed astrophysical neutrinos can be explained by known sources. Neutrino production is thought to occur in energetic environments that are ultimately powered by the gravitational collapse of dense regions of the large-scale mass distribution in the universe. Whatever their identity, neutrino sources likely trace this large-scale mass distribution. The clustering of neutrinos with a tracer of the large-scale structure may provide insight into the distribution of neutrino sources with respect to redshift and the identity of neutrino sources. We implement a two-point angular cross correlation of the Northern sky track events with an infrared galaxy catalog derived from the Wide-field Infrared Survey Explorer (WISE) and Two Micron All Sky Survey (2MASS) source catalogs, which trace the nearby large-scale structure. No statistically significant correlation is found between the neutrinos and this infrared galaxy catalog. We find that ≤54% of the diffuse muon neutrino flux can be attributed to sources correlated with the galaxy catalog with 90% confidence. Additionally, when assuming that the neutrino source comoving density evolves following a power law in redshift, dN s /dV ∝ (1 + z) k , we find that sources with negative evolution, in particular k < −1.75, are disfavored at the 90% confidence level.
OsO4 is Silicon tetrafluoride-like structured and crystallizes in the monoclinic C2 space group. The structure is zero-dimensional and consists of two OsO4 clusters. Os8+ is bonded in a tetrahedral geometry to four O2- atoms. All Os–O bond lengths are 1.72 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded in a single-bond geometry to one Os8+ atom. In the second O2- site, O2- is bonded in a single-bond geometry to one Os8+ atom.
RhTe6Cl3 crystallizes in the trigonal R-3c space group. The structure is zero-dimensional and consists of six RhTe6Cl3 clusters. Rh3+ is bonded in an octahedral geometry to six equivalent Te atoms. All Rh–Te bond lengths are 2.70 Å. Te is bonded in a 2-coordinate geometry to one Rh3+ and one Cl1- atom. The Te–Cl bond length is 2.81 Å. Cl1- is bonded in an L-shaped geometry to two equivalent Te atoms.
YbSBr is Cyanogen Chloride-like structured and crystallizes in the orthorhombic Pmmm space group. The structure is zero-dimensional and consists of two YbSBr clusters. Yb3+ is bonded in a linear geometry to one S2- and one Br1- atom. The Yb–S bond length is 2.44 Å. The Yb–Br bond length is 2.62 Å. S2- is bonded in a distorted single-bond geometry to one Yb3+ atom. Br1- is bonded in a single-bond geometry to one Yb3+ atom.
ABSTRACT We develop a new machine learning algorithm, via machinae, to identify cold stellar streams in data from the Gaia telescope. via machinae is based on ANODE, a general method that uses conditional density estimation and sideband interpolation to detect local overdensities in the data in a model agnostic way. By applying ANODE to the positions, proper motions, and photometry of stars observed by Gaia, via machinae obtains a collection of those stars deemed most likely to belong to a stellar stream. We further apply an automated line-finding method based on the Hough transform to search for line-like features in patches of the sky. In this paper, we describe the via machinae algorithm in detail and demonstrate our approach on the prominent stream GD-1. Though some parts of the algorithm are tuned to increase sensitivity to cold streams, the via machinae technique itself does not rely on astrophysical assumptions, such as the potential of the Milky Way or stellar isochrones. This flexibility suggests that it may have further applications in identifying other anomalous structures within the Gaia data set, for example debris flow and globular clusters.
CS2(S)12 is Tetraauricupride structured and crystallizes in the trigonal R-3m space group. The structure is zero-dimensional and consists of three CS2 clusters and three S clusters. In each CS2 cluster, C4+ is bonded in a linear geometry to two equivalent S+0.29- atoms. Both C–S bond lengths are 1.56 Å. S+0.29- is bonded in a single-bond geometry to one C4+ atom. In each S cluster, there are two inequivalent S+0.29- sites. In the first S+0.29- site, S+0.29- is bonded in a water-like geometry to two equivalent S+0.29- atoms. Both S–S bond lengths are 2.07 Å. In the second S+0.29- site, S+0.29- is bonded in a water-like geometry to two equivalent S+0.29- atoms.
Cs4CO4 is alpha Po structured and crystallizes in the cubic P-43m space group. The structure is zero-dimensional and consists of one Cs4CO4 cluster. Cs1+ is bonded in a 9-coordinate geometry to three equivalent O2- atoms. All Cs–O bond lengths are 2.80 Å. C4+ is bonded in a tetrahedral geometry to four equivalent O2- atoms. All C–O bond lengths are 1.44 Å. O2- is bonded in a single-bond geometry to three equivalent Cs1+ and one C4+ atom.
(Bi)5(AlBr4)3 is Iron carbide-derived structured and crystallizes in the trigonal R-3c space group. The structure is zero-dimensional and consists of eighteen AlBr4 clusters and six Bi clusters. In each AlBr4 cluster, Al is bonded in a tetrahedral geometry to four Br atoms. There are two shorter (2.32 Å) and two longer (2.34 Å) Al–Br bond lengths. There are two inequivalent Br sites. In the first Br site, Br is bonded in a single-bond geometry to one Al atom. In the second Br site, Br is bonded in a single-bond geometry to one Al atom. In each Bi cluster, there are two inequivalent Bi sites. In the first Bi site, Bi is bonded in a 6-coordinate geometry to three equivalent Bi atoms. All Bi–Bi bond lengths are 3.09 Å. In the second Bi site, Bi is bonded in a 4-coordinate geometry to four Bi atoms. Both Bi–Bi bond lengths are 3.24 Å.
CsRbAs is Copper structured and crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of one CsRbAs cluster. Cs1+ is bonded in a distorted single-bond geometry to one As2- atom. The Cs–As bond length is 2.61 Å. Rb1+ is bonded in a distorted single-bond geometry to one As2- atom. The Rb–As bond length is 2.61 Å. As2- is bonded in a linear geometry to one Cs1+ and one Rb1+ atom.
AlSBr3 is Silicon tetrafluoride-derived structured and crystallizes in the trigonal P-3m1 space group. The structure is zero-dimensional and consists of two AlSBr3 clusters. Al is bonded in a tetrahedral geometry to one S and three equivalent Br atoms. The Al–S bond length is 2.29 Å. All Al–Br bond lengths are 2.30 Å. S is bonded in a single-bond geometry to one Al atom. Br is bonded in a single-bond geometry to one Al atom.
ZnN2Cl2 is Silicon tetrafluoride-derived structured and crystallizes in the orthorhombic Imma space group. The structure is zero-dimensional and consists of four ZnN2Cl2 clusters. Zn2+ is bonded in a tetrahedral geometry to two equivalent N and two equivalent Cl1- atoms. Both Zn–N bond lengths are 2.17 Å. Both Zn–Cl bond lengths are 2.16 Å. N is bonded in a single-bond geometry to one Zn2+ atom. Cl1- is bonded in a single-bond geometry to one Zn2+ atom.
U2NTe2 crystallizes in the tetragonal P4/mmm space group. The structure is zero-dimensional and consists of one U2NTe2 cluster. U+3.50+ is bonded in a distorted single-bond geometry to one N3- and one Te2- atom. The U–N bond length is 1.98 Å. The U–Te bond length is 3.14 Å. N3- is bonded in a linear geometry to two equivalent U+3.50+ atoms. Te2- is bonded in a distorted single-bond geometry to one U+3.50+ atom.
Introduction of a surface defect on a POV-alkoxide imparts both structural and electronic alterations, resulting in “switchable” PCET regiochemistry. Such features provide insight into PCET reactivity at metal oxide surfaces.
Cosmic shear, galaxy clustering, and the abundance of massive halos each probe the large-scale structure of the Universe in complementary ways. We present cosmological constraints from the joint analysis of the three probes, building on the latest analyses of the lensing-informed abundance of clusters identified by the South Pole Telescope (SPT) and of the auto- and cross-correlation of galaxy position and weak lensing measurements (3 × 2 pt) in the Dark Energy Survey (DES). We consider the cosmological correlation between the different tracers and we account for the systematic uncertainties that are shared between the large-scale lensing correlation functions and the small-scale lensing-based cluster mass calibration. Marginalized over the remaining Λ cold dark matter (Λ CDM) parameters (including the sum of neutrino masses) and 52 astrophysical modeling parameters, we measure Ω m = 0.300 ± 0.017 and 𝜎 8 = 0.797 ± 0.026. Compared to constraints from Planck primary cosmic microwave background (CMB) anisotropies, our constraints are only 15% wider with a probability to exceed of 0.22 (1.2𝜎) for the two-parameter difference. We further obtain 𝑆 8 ≡𝜎 8 (Ω m /0.3) 0.5 = 0.796 ± 0.013 which is lower than the Planck measurement at the 1.6𝜎 level. The combined SPT cluster, DES 3 ×2 pt, and Planck datasets mildly prefer a nonzero positive neutrino mass, with a 95% upper limit ∑ 𝑚 𝜈 < 0.25 eV on the sum of neutrino masses. Assuming a 𝑤CDM model, we constrain the dark energy equation of state parameter 𝑤 = −1.15$^{+0.23}_{−0.17}$ and when combining with Planck primary CMB anisotropies, we recover 𝑤 = −1.20$^{+0.15}_{−0.09}$, a 1.7𝜎 difference with a cosmological constant. The precision of our results highlights the benefits of multiwavelength multiprobe cosmology and our analysis paves the way for upcoming joint analyses of next-generation datasets.
NSAsN2S3 crystallizes in the triclinic P1 space group. The structure is zero-dimensional and consists of four N2S3 clusters and four NSAs clusters. In each N2S3 cluster, there are two inequivalent N1+ sites. In the first N1+ site, N1+ is bonded in a bent 120 degrees geometry to two S2- atoms. There is one shorter (1.60 Å) and one longer (1.63 Å) N–S bond length. In the second N1+ site, N1+ is bonded in a bent 120 degrees geometry to two S2- atoms. There is one shorter (1.60 Å) and one longer (1.64 Å) N–S bond length. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded in a water-like geometry to two N1+ atoms. In the second S2- site, S2- is bonded in a single-bond geometry to one N1+ atom. In the third S2- site, S2- is bonded in a single-bond geometry to one N1+ atom. In each NSAs cluster, As5+ is bonded in a 1-coordinate geometry to one S2- atom. The As–S bond length is 2.34 Å. N1+ is bonded in a single-bond geometry to one S2- atom. The N–S bond length is 1.63 Å. S2- is bonded in a distorted bent 120 degrees geometry to one As5+ and one N1+ atom.
CuCl4 is Silicon tetrafluoride-like structured and crystallizes in the orthorhombic Fmm2 space group. The structure is zero-dimensional and consists of four CuCl4 clusters. Cu is bonded in a tetrahedral geometry to four Cl atoms. All Cu–Cl bond lengths are 2.17 Å. There are two inequivalent Cl sites. In the first Cl site, Cl is bonded in a single-bond geometry to one Cu atom. In the second Cl site, Cl is bonded in a single-bond geometry to one Cu atom.
Hg(H2O)6(ClO4)2 crystallizes in the trigonal P-3m1 space group. The structure is zero-dimensional and consists of two ClO4 clusters and one Hg(H2O)6 cluster. In each ClO4 cluster, there are two inequivalent O sites. In the first O site, O is bonded in a single-bond geometry to one Cl atom. The O–Cl bond length is 1.47 Å. In the second O site, O is bonded in a single-bond geometry to one Cl atom. The O–Cl bond length is 1.45 Å. Cl is bonded in a tetrahedral geometry to four O atoms. In the Hg(H2O)6 cluster, Hg is bonded in an octahedral geometry to six equivalent O atoms. All Hg–O bond lengths are 2.40 Å. H is bonded in a single-bond geometry to one O atom. The H–O bond length is 0.98 Å. O is bonded in a distorted water-like geometry to one Hg and two equivalent H atoms.