Timing Gamma-ray Pulsars using Gibbs Sampling

Fuente: arXiv

Saved in:

Bibliographic Details
Main Authors:	Clark, Colin J., Valtolina, Serena, Nieder, Lars, van Haasteren, Rutger
Format:	Preprint
Published:	2026
Subjects:	High Energy Astrophysical Phenomena
Online Access:	Acceder al recurso
Tags:	Add Tag No Tags, Be the first to tag this record!

Regularizing the Pulsar Timing Array likelihood: A path towards Fourier Space
by: Valtolina, Serena, et al.
Published: (2024)

Finding Supermassive Black Hole Binary Mergers in Pulsar Timing Array Data
by: Tomson, Sharon Mary, et al.
Published: (2025)

Gaussian process representation of dispersion measure noise in pulsar wideband datasets
by: Susobhanan, Abhimanyu, et al.
Published: (2025)

Pulsar timing array source ensembles
by: Allen, Bruce, et al.
Published: (2024)

Einstein@Home Searches for Gamma-ray Pulsars in the Inner Galaxy
by: Clark, C. J., et al.
Published: (2025)

Testing strengths, limitations and biases of current Pulsar Timing Arrays detection analyses on realistic data
by: Valtolina, Serena, et al.
Published: (2023)

The Effect of Pulsar Geometry on the Observed Gamma-ray Spectrum of Millisecond Pulsars
by: Lloyd, Sheridan J., et al.
Published: (2024)

Discovery and Timing of Four $γ$-ray Millisecond Pulsars
by: Kerr, M., et al.
Published: (2025)

FrankenStat I: a New Approach to Pulsar Timing Array Data Combination
by: Wright, David, et al.
Published: (2025)

Gamma-ray Analysis of Pulsar Environments and Their Theoretical Explanation
by: Zhang, Wei
Published: (2025)

Future Space-based Gamma-ray Pulsar Timing Arrays
by: Kerr, Matthew, et al.
Published: (2025)

Observational Relationship between Spectral Properties of Gamma-ray and X-ray Emissions from Pulsars
by: Aravindaraj, Ashwin, et al.
Published: (2026)

A Systematic Search for MeV-GeV Pulsar Wind Nebulae without Gamma-ray Detected Pulsars
by: Eagle, Jordan, et al.
Published: (2025)

Gamma-ray Pulsar Emission is Mostly Stable on Timescales from Minutes to Years
by: Kerr, Matthew
Published: (2025)

Gamma-ray Orbital Modulation in Spider Pulsars: Three Discoveries and a Universal Modulated Fraction
by: Satybaldiev, Maksat, et al.
Published: (2025)

A 350-MHz Green Bank Telescope Survey of Unassociated Fermi LAT Sources: Discovery and Timing of Ten Millisecond Pulsars
by: Bangale, P., et al.
Published: (2024)

Pulsar Discoveries from the TRAPUM UHF Survey of Fermi-LAT Sources
by: Thongmeearkom, Tinn, et al.
Published: (2026)

Spectroscopy of a Sample of Unidentified Gamma-ray Fermi Sources
by: Ulgiati, Alberto, et al.
Published: (2024)

Gamma-ray Bursts
by: Levan, Andrew J.
Published: (2025)

A Catalog of Pulsar X-ray Filaments
by: Dinsmore, Jack T., et al.
Published: (2024)

On the Gravitational Wave Counterpart to a Gamma-ray Galactic Center Signal from Millisecond Pulsars
by: Bartel, Kayla, et al.
Published: (2024)

Beyond diagonal approximations: improved covariance modeling for pulsar timing array data analysis
by: Crisostomi, Marco, et al.
Published: (2025)

The Role of r-Modes in Pulsar Spin-down, Pulsar Timing, and Gravitational Waves
by: Li, Xiyuan, et al.
Published: (2023)

Millisecond Pulsars in Globular Clusters and Implications for the Galactic Center Gamma-Ray Excess
by: Amerio, Aurelio, et al.
Published: (2024)

A Physical Model of Pulsar X-ray Filaments
by: Dinsmore, Jack T., et al.
Published: (2026)

Pulsar Timing Array in the past decade
by: Liu, Kuo, et al.
Published: (2026)

Discoveries and Timing of Pulsars in M62
by: Vleeschower, L., et al.
Published: (2024)

The FAST Galactic Plane Pulsar Snapshot Survey. IX. Timing Three Binary Pulsars with Wide Orbits and Low Orbital Eccentricities
by: Yang, Z. L., et al.
Published: (2026)

X-ray Polarimetry of X-ray Pulsars
by: Poutanen, Juri, et al.
Published: (2024)

On the Contribution of Unresolved Pulsars to the Ultra-high-energy Galactic Diffuse Gamma-Ray Emission
by: Kaci, Samy, et al.
Published: (2024)

High-cadence Timing of Binary Pulsars with CHIME
by: Tan, Chia Min, et al.
Published: (2024)

Stochastic Wave Dark Matter with Fermi-LAT $γ$-ray Pulsar Timing Array
by: Luu, Hoang Nhan, et al.
Published: (2023)

Multi-Method Timing of Transient Radio Pulsars with the GBT350 and GBNCC Surveys
by: Lewis, E. F., et al.
Published: (2025)

Noisy Timing Behavior is a Feature of Central Compact Object Pulsars
by: Perez, K. I., et al.
Published: (2025)

MeerKAT Pulsar Timing Array parallaxes and proper motions
by: Shamohammadi, Mohsen, et al.
Published: (2024)

Exploring the Transitional Parameter Space of Blazars using Gamma-ray and X-ray Population Diagnostics
by: Malik, Zahoor, et al.
Published: (2026)

Discovery and Timing of the First Millisecond Pulsar in NGC 6316
by: Bhakta, Deven, et al.
Published: (2026)

No Measurable Changes in Radio and X-ray Emission Surrounding Glitches in the Young Pulsar PSR J2229+6114
by: Xia, Wenke, et al.
Published: (2026)

Dissecting the nanoHz gravitational wave sky: frequency-correlated anisotropy induced by eccentric supermassive black hole binaries
by: Moreschi, Beatrice Eleonora, et al.
Published: (2025)

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
VUFIND_SESSION	"60b2b6c871811559aafcaaf59c609694"
language	"en"
ui	"standard"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1790712539.7837 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "60b2b6c871811559aafcaaf59c609694" ]`]
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	"VUFIND_SESSION=60b2b6c871811559aafcaaf59c609694; language=en; ui=standard"
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	"216.73.216.147"
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	"9996"
REDIRECT_URL	""" /Record/\n arxiv_https___arxiv_org_abs_2601_07592/Similar """
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/%0Aarxiv_https___arxiv_org_abs_2601_07592/Similar"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1790712539.7759
REQUEST_TIME	1790712539

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Environment & details:

GET Data empty

POST Data empty

Files empty

Key	Value
VUFIND_SESSION	"60b2b6c871811559aafcaaf59c609694"
language	"en"
ui	"standard"

Session

Key	Value
__Laminas	array:2 [`"_REQUEST_ACCESS_TIME" => 1790712539.7837 "_VALID" => array:1 [ "Laminas\Session\Validator\Id" => "60b2b6c871811559aafcaaf59c609694" ]`]
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	"VUFIND_SESSION=60b2b6c871811559aafcaaf59c609694; language=en; ui=standard"
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	"216.73.216.147"
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	"9996"
REDIRECT_URL	""" /Record/\n arxiv_https___arxiv_org_abs_2601_07592/Similar """
GATEWAY_INTERFACE	"CGI/1.1"
SERVER_PROTOCOL	"HTTP/1.1"
REQUEST_METHOD	"GET"
QUERY_STRING	""
REQUEST_URI	"/Record/%0Aarxiv_https___arxiv_org_abs_2601_07592/Similar"
SCRIPT_NAME	"/index.php"
PHP_SELF	"/index.php"
REQUEST_TIME_FLOAT	1790712539.7759
REQUEST_TIME	1790712539

Environment Variables empty

Registered Handlers

0. Whoops\Handler\PrettyPageHandler

Similar Items

Similar Items

Environment & details:

Environment & details: