Testing the Existence of Event Horizons against Rotating Reflecting Surfaces

Fuente: arXiv

Saved in:

Bibliographic Details
Main Authors:	de Kleuver, Joost, Bronzwaer, Thomas, Falcke, Heino, Narayan, Ramesh, Mizuno, Yosuke, Porth, Oliver, Olivares, Hector
Format:	Preprint
Published:	2023
Subjects:	General Relativity and Quantum Cosmology High Energy Astrophysical Phenomena
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

Toward General-Relativistic Magnetohydrodynamics Simulations in Stationary Non-Vacuum Spacetimes
by: Kocherlakota, Prashant, et al.
Published: (2023)

Near-Horizon Polarization as a Diagnostic of Black Hole Spacetime
by: Hou, Yehui, et al.
Published: (2024)

General-Relativistic Magnetohydrodynamic Equations: the bare essential
by: Mizuno, Yosuke, et al.
Published: (2024)

Distinguishability of a naked singularity from a black hole in dynamics and radiative signatures
by: Dihingia, Indu K., et al.
Published: (2024)

Revisited equilibrium solution of Fishbone and Moncrief torus for extended GRMHD simulations
by: Uniyal, Akhil, et al.
Published: (2024)

The future ability to test theories of gravity with black-hole shadows
by: Uniyal, Akhil, et al.
Published: (2025)

Revealing Limitation in the Standard Cosmological Model: A Redshift-Dependent Hubble Constant from Fast Radio Bursts
by: Kalita, Surajit, et al.
Published: (2025)

Autocorrelation signatures in time-resolved black hole flare images: secondary peaks and convergence structure
by: Zhang, Zhenyu, et al.
Published: (2025)

Signature of iron line profile from a Kerr-like wormhole
by: Liu, Cheng, et al.
Published: (2026)

Enhanced Blandford Znajek Jet in Loop Quantum Black Hole
by: Jiang, Hong-Xuan, et al.
Published: (2024)

Reply to "Comment on 'Gravitational Pair Production and Black Hole Evaporation'"
by: Wondrak, Michael F., et al.
Published: (2023)

Observing naked singularities by the present and next-generation Event Horizon Telescope
by: Deliyski, Valentin, et al.
Published: (2024)

An upper limit to the lifetime of stellar remnants from gravitational pair production
by: Falcke, Heino, et al.
Published: (2024)

Magnetically Driven Retrograde Precession in Misaligned Black Hole Accretion Flows
by: Jiang, Hong-Xuan, et al.
Published: (2025)

High-Order Photon Rings around Kerr Naked Singularities
by: Suzuki, Hina, et al.
Published: (2025)

Effect of Type II Strong Gravitational Lensing on Tests of General Relativity
by: Narayan, Purnima, et al.
Published: (2024)

Measuring black hole spins with x-ray reflection spectroscopy: A GRMHD outlook
by: Shashank, Swarnim, et al.
Published: (2025)

The impact of resistivity on the variability of black hole accretion flows
by: Nathanail, Antonios, et al.
Published: (2024)

On the Universality of Energy Extraction from Black Hole Spacetimes
by: Chatterjee, Koushik, et al.
Published: (2023)

Supermassive black-hole imaging with a self-consistent electron-temperature prescription
by: Cruz-Osorio, Alejandro, et al.
Published: (2025)

General relativistic magnetohydrodynamic simulations of accretion onto exotic compact objects
by: Olivares-Sánchez, Héctor R., et al.
Published: (2024)

The Physical Origin and Time Lag of Multi-Frequency Flares from SgrA*
by: Jiang, Hong-Xuan, et al.
Published: (2025)

Horizon replicas in black hole shadows
by: Pugliese, D., et al.
Published: (2024)

Plasma flow in force-free magnetospheres: two-fluid model near pulsars and black holes
by: Mizuno, Morifumi, et al.
Published: (2025)

Probing the disk-jet coupling in M87
by: Saiz-Pérez, Ainara, et al.
Published: (2025)

The imitation game (r)evolutions: $Q$-star effective shadow from GRMHD analysis
by: Jaramillo, Víctor, et al.
Published: (2026)

Tests of general relativity in the nonlinear regime: a parametrized plunge-merger-ringdown gravitational waveform model
by: Maggio, Elisa, et al.
Published: (2022)

On the Cuspy Structure of Rotating Wormhole Shadows
by: Cheng, Peng, et al.
Published: (2026)

Dynamics and Radiative Signatures of Accretion Flows onto a Kerr-like Wormhole
by: Xia, Jing-ze, et al.
Published: (2026)

Charged Rotating Black Hole and the First Law
by: Campos, S. D
Published: (2025)

Neural post-Einsteinian framework for efficient theory-agnostic tests of general relativity with gravitational waves
by: Xie, Yiqi, et al.
Published: (2024)

Horizon-penetrating form of parametrized metrics for static and stationary black holes
by: Ma, Yixuan, et al.
Published: (2024)

Foiling Black Hole Foils: Revealing Horizon Alternatives with Baryonic Atmospheres
by: Faraji, Shokoufe, et al.
Published: (2026)

Sgr A* Shadow Study with KTN Space Time and Investigation of NUT Charge Existence
by: Ghasemi-Nodehi, M.
Published: (2024)

Rapidly Rotating Neutron Star Collapse in Massive Scalar-Tensor Theories
by: M., José Carlos Olvera, et al.
Published: (2026)

Deep-Learning Classification and Parameter Inference of Rotational Core-Collapse Supernovae
by: Nunes, Solange, et al.
Published: (2024)

Impact of Perfect Fluid Dark Matter on the Appearance of Rotating Black Hole
by: Yu-Xiang, Huang, et al.
Published: (2026)

The Effect of a Self-bound Equation of State on the Structure of Rotating Compact Stars
by: Konstantinou, Andreas
Published: (2025)

General Relativistic Stability and Gravitational Wave Content of Rotating Triaxial Neutron Stars
by: Luo, Yufeng, et al.
Published: (2023)

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
ui	"standard"
VUFIND_SESSION	"f7596c8ecc4aa093495e4fb2f55fe2f0"
language	"en"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1790883960.5788 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "f7596c8ecc4aa093495e4fb2f55fe2f0" ]`]
SessionState	Laminas\Stdlib\ArrayObject {#938}
FlashMessenger	Laminas\Stdlib\ArrayObject {#1433}
SessionHelper	Laminas\Stdlib\ArrayObject {#1759}

Server/Request Data

Key	Value
REDIRECT_VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
REDIRECT_HTTPS	"on"
REDIRECT_SSL_TLS_SNI	"info.umar.mx"
REDIRECT_STATUS	"200"
VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
HTTPS	"on"
SSL_TLS_SNI	"info.umar.mx"
HTTP_ACCEPT	"/"
HTTP_USER_AGENT	"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
HTTP_COOKIE	"ui=standard; VUFIND_SESSION=f7596c8ecc4aa093495e4fb2f55fe2f0; language=en"
HTTP_ACCEPT_ENCODING	"gzip, br, zstd, deflate"
HTTP_HOST	"info.umar.mx"
PATH	"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/snap/bin"
SERVER_SIGNATURE	"<address>Apache/2.4.66 (Ubuntu) Server at info.umar.mx Port 443</address>\n"
SERVER_SOFTWARE	"Apache/2.4.66 (Ubuntu)"
SERVER_NAME	"info.umar.mx"
SERVER_ADDR	"200.23.222.19"
SERVER_PORT	"443"
REMOTE_ADDR	"216.73.217.142"
DOCUMENT_ROOT	"/usr/local/vufind/public"
REQUEST_SCHEME	"https"
CONTEXT_PREFIX	""
CONTEXT_DOCUMENT_ROOT	"/usr/local/vufind/public"
SERVER_ADMIN	"admin@localhost"
SCRIPT_FILENAME	"/usr/local/vufind/public/index.php"
REMOTE_PORT	"55924"
REDIRECT_URL	""" /Record/\n arxiv_https___arxiv_org_abs_2311_05555/Similar """
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/%0Aarxiv_https___arxiv_org_abs_2311_05555/Similar"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1790883960.5702
REQUEST_TIME	1790883960

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
ui	"standard"
VUFIND_SESSION	"f7596c8ecc4aa093495e4fb2f55fe2f0"
language	"en"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1790883960.5788 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "f7596c8ecc4aa093495e4fb2f55fe2f0" ]`]
SessionState	Laminas\Stdlib\ArrayObject {#938}
FlashMessenger	Laminas\Stdlib\ArrayObject {#1433}
SessionHelper	Laminas\Stdlib\ArrayObject {#1759}

Server/Request Data

Key	Value
REDIRECT_VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
REDIRECT_HTTPS	"on"
REDIRECT_SSL_TLS_SNI	"info.umar.mx"
REDIRECT_STATUS	"200"
VUFIND_LOCAL_DIR	"/usr/local/vufind/local"
HTTPS	"on"
SSL_TLS_SNI	"info.umar.mx"
HTTP_ACCEPT	"/"
HTTP_USER_AGENT	"Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)"
HTTP_COOKIE	"ui=standard; VUFIND_SESSION=f7596c8ecc4aa093495e4fb2f55fe2f0; language=en"
HTTP_ACCEPT_ENCODING	"gzip, br, zstd, deflate"
HTTP_HOST	"info.umar.mx"
PATH	"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/snap/bin"
SERVER_SIGNATURE	"<address>Apache/2.4.66 (Ubuntu) Server at info.umar.mx Port 443</address>\n"
SERVER_SOFTWARE	"Apache/2.4.66 (Ubuntu)"
SERVER_NAME	"info.umar.mx"
SERVER_ADDR	"200.23.222.19"
SERVER_PORT	"443"
REMOTE_ADDR	"216.73.217.142"
DOCUMENT_ROOT	"/usr/local/vufind/public"
REQUEST_SCHEME	"https"
CONTEXT_PREFIX	""
CONTEXT_DOCUMENT_ROOT	"/usr/local/vufind/public"
SERVER_ADMIN	"admin@localhost"
SCRIPT_FILENAME	"/usr/local/vufind/public/index.php"
REMOTE_PORT	"55924"
REDIRECT_URL	""" /Record/\n arxiv_https___arxiv_org_abs_2311_05555/Similar """
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/%0Aarxiv_https___arxiv_org_abs_2311_05555/Similar"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1790883960.5702
REQUEST_TIME	1790883960

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Similar Items

Similar Items

Environment & details:

Environment & details: