A Globular Cluster Luminosity Function Distance to NGC 4993 Hosting a Binary Neutron Star Merger GW170817/GRB 170817A

Abstract

NGC 4993 hosts a binary neutron star merger emitting gravitational waves and electromagnetic waves, GW170817/GRB 170817A. The distance to this galaxy is not well established. We select the globular cluster candidates from the Hubble Space Telescope/ACS F606W images of NGC 4993 in the archive, using the structural parameters of the detected sources. The radial number density distribution of these candidates shows a significant central concentration around the galaxy center at the galactocentric distance $r<50^{\prime \prime }$, showing that they are mostly the members of NGC 4993. Also the luminosity function of these candidates is fit well by a Gaussian function. Therefore the selected candidates at $r<50^{\prime \prime }$ are mostly considered to be globular clusters in NGC 4993. We derive an extinction-corrected turnover Vega magnitude in the luminosity function of the globular clusters at $20^{\prime \prime }<r<50^{\prime \prime }$, F606W (max)${}_0=25.36\pm 0.08$ ($V_0=25.52\pm 0.11$)} mag. Adopting the calibration of the turnover magnitudes of the globular clusters, $M_V(\max )=-7.58\pm 0.11$, we derive a distance to NGC 4993, $d=41.65\pm 3.00$ Mpc ($(m-M{)}_0=33.10\pm 0.16$). The systematic error of this method can be as large as $\pm 0.3$ mag. This value is consistent with the previous distance estimates based on the fundamental plane relation and the gravitational wave method in the literature. The distance in this study can be used to constrain the values of the parameters including the inclination angle of the binary system in the models of gravitational wave analysis.

arXiv commentAccepted for publication in ApJL, 7 pages, 5 figures

References in corpus (26)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• An Ordinary Short Gamma-Ray Burst with Extraordinary Implications: Fermi-GBM Detection of GRB 170817A
• Swope Supernova Survey 2017a (SSS17a), the Optical Counterpart to a Gravitational Wave Source
• The Photometric Performance and Calibration of the HST Advanced Camera For Surveys
• INTEGRAL Detection of the First Prompt Gamma-Ray Signal Coincident with the Gravitational Wave Event GW170817
• A kilonova as the electromagnetic counterpart to a gravitational-wave source
• The Emergence of a Lanthanide-Rich Kilonova Following the Merger of Two Neutron Stars
• A concise reference to (projected) Sersic R^{1/n} quantities, including Concentration, Profile Slopes, Petrosian indices, and Kron Magnitudes
• The Fundamental Plane for cluster E and S0 galaxies
• Early-type galaxies in the SDSS. III. The Fundamental Plane
• Kilonova from post-merger ejecta as an optical and near-infrared counterpart of GW170817
• The Hubble Space Telescope Key Project on the Extragalactic Distance Scale XXIV: The Calibration of Tully-Fisher Relations and the Value of the Hubble Constant
• Galaxy Groups within 3500 km s${}^{-1}$
• The Distance to NGC 4993: The Host Galaxy of the Gravitational-wave Event GW170817
• The environment of the binary neutron star merger GW170817
• A Precise Distance to the Host Galaxy of the Binary Neutron Star Merger GW170817 Using Surface Brightness Fluctuations
• Dark Matter Halos in Galaxies and Globular Cluster Populations
• Globular cluster luminosity function as distance indicator
• Distance and properties of NGC 4993 as the host galaxy of a gravitational wave source, GW170817
• SPIDER II - The Fundamental Plane of Early-type Galaxies in grizYJHK
• The Globular Cluster Luminosity Function: New Progress in Understanding an Old Distance Indicator
• RR Lyrae-based calibration of the Globular Cluster Luminosity Function
• Dual Stellar Halos in the Standard Elliptical Galaxy M105 and Formation of Massive Early-Type Galaxies
• Calibration of the Fundamental Plane Zero-point in the Leo-I Group and an Estimate of the Hubble Constant
• Globular Clusters and Spur Clusters in NGC 4921, the Brightest Spiral Galaxy in the Coma Cluster

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• The Optical Afterglow of GW170817: An Off-axis Structured Jet and Deep Constraints on a Globular Cluster Origin
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• Deep Hubble Space Telescope Observations of GW170817: Complete Light Curves and the Properties of the Galaxy Merger of NGC 4993
• Swift/UVOT follow-up of Gravitational Wave Alerts in the O3 era
• Globular Cluster Systems of Massive Compact Elliptical Galaxies in the Local Universe: Evidence for Relic Red Nuggets?
• Estimating Hubble Constant with Gravitational Observations: A Concise Review
• VEGAS-SSS: An intra-group component in the globular cluster system of NGC 5018 group of galaxies using VST data
• The Spatially Resolved Properties of the GW170817 Host Galaxy