Search Results - "Kwan, Tom"

The Effects of Gas Angular Momentum on the Formation of Magnetically Arrested Disks and the Launching of Powerful Jets by Kwan, Tom M., Dai, Lixin, Tchekhovskoy, Alexander

“…In this letter, we investigate Bondi-like accretion flows with zero or low specific angular momentum by performing 3D general relativistic magnetohydrodynamic…”
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Dynamical Unification of Tidal Disruption Events by Thomsen, Lars L., Kwan, Tom M., Dai, Lixin, Wu, Samantha C., Roth, Nathaniel, Ramirez-Ruiz, Enrico

“…The ∼100 tidal disruption events (TDEs) observed so far exhibit a wide range of emission properties both at peak and over their lifetimes. Some TDEs radiate…”
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Subrelativistic Outflow and Hours-timescale Large-amplitude X-Ray Dips during Super-Eddington Accretion onto a Low-mass Massive Black Hole in the Tidal Disruption Event AT2022lri by Yao, Yuhan, Guolo, Muryel, Tombesi, Francesco, Li, Ruancun, Gezari, Suvi, García, Javier A., Dai, Lixin, Chornock, Ryan, Lu, Wenbin, Kulkarni, S. R., Gendreau, Keith C., Pasham, Dheeraj R., Cenko, S. Bradley, Kara, Erin, Margutti, Raffaella, Ajay, Yukta, Wevers, Thomas, Kwan, Tom M., Andreoni, Igor, Bloom, Joshua S., Drake, Andrew J., Graham, Matthew J., Hammerstein, Erica, Laher, Russ R., LeBaron, Natalie, Mahabal, Ashish A., O’Connor, Brendan, Purdum, Josiah, Ravi, Vikram, Sears, Huei, Sharma, Yashvi, Smith, Roger, Sollerman, Jesper, Somalwar, Jean J., Wold, Avery

“…We present the tidal disruption event (TDE) AT2022lri, hosted in a nearby (≈144 Mpc) quiescent galaxy with a low-mass massive black hole (10 4 M ⊙ < M BH < 10…”
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The properties of wind and jet from a super-Eddington accretion flow around a supermassive black hole by Yang, Hai, Yuan, Feng, Kwan, Tom, Dai, Lixin

“…ABSTRACT Wind and jet are important medium of active galactic nucleus (AGN) feedback thus it is crucial to obtain their properties for the feedback study. In…”
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The Effects of Gas Angular Momentum on the Formation of Magnetically Arrested Disks and the Launching of Powerful Jets by Kwan, Tom M, Dai, Lixin, Tchekhovskoy, Alexander

“…ApJL 946 L42 (2023) In this letter, we investigate Bondi-like accretion flows with zero or low specific angular momentum by performing 3D general relativistic…”
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The properties of wind and jet from a super-Eddington accretion flow around a supermassive black hole by Yang, Hai, Yuan, Feng, Kwan, Tom, Dai, Lixin

“…Wind and jet are important medium of AGN feedback thus it is crucial to obtain their properties for the feedback study. In this paper we investigate the…”
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A 70 dB MTPR Integrated Programmable Gain/Bandwidth Fourth-Order Chebyshev High-Pass Filter for ADSL/VDSL Receivers in 65 nm CMOS by Fang Lin, Xinyu Yu, Ranganathan, S., Kwan, T.

“…This paper presents a fourth-order Chebyshev high-pass filter (HPF) in 65 nm CMOS process with programmable gain and corner frequency to support ADSL and 5/6…”
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A Low-Power Single-Weight-Combiner 802.11abg SoC in 0.13 μm CMOS for Embedded Applications Utilizing An Area and Power Efficient Cartesian Phase Shifter and Mixer Circuit by AFSAHI, Ali, RAEL, Jacob J, WU, Stephen, ROUFOOGARAN, Rozi, ZOLFAGHARI, Alireza, LEETE, John C, TRAN, Long, CARTER, Keith A, NARIMAN, Mohammad, YEUNG, Keno Wai-Ki, MORTON, Walter, GONIKBERG, Mark, BEHZAD, Arya, SETH, Mukul, FORBES, Marcellus, PATTIN, Jay, GUTIERREZ, Luis, RANGANATHAN, Sumant, NING LI, BLECKER, Eric, LIN, Jack, KWAN, Tom, ZHU, Rose, CHIEN, Hung-Ming, CHAMBERS, Mark, ROFOUGARAN, Maryam, ROFOUGARAN, Ahmadreza, TRACHEWSKY, Jason, VAN ROOYEN, Pieter, PAN, Michael, AU, Stephen, OJO, Adedayo, LEE, C. Paul, BUTALA ANAND, Seema, CHIEN, Kevin

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Dynamical Unification of Tidal Disruption Events by Thomsen, Lars Lund, Kwan, Tom, Dai, Lixin, Wu, Samantha, Ramirez-Ruiz, Enrico

“…About a hundred tidal disruption events (TDEs) have been observed and they exhibit a wide range of emission properties both at peak and over their lifetimes…”
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Formation of Wind-Fed Black Hole High-mass X-ray Binaries: The Role of Roche-lobe-Overflow Post Black-Hole Formation by Xing, Zepei, Fragos, Tassos, Zapartas, Emmanouil, Kwan, Tom M, Dai, Lixin, Mandel, Ilya, Kruckow, Matthias U, Briel, Max, Andrews, Jeff J, Bavera, Simone S, Gossage, Seth, Kovlakas, Konstantinos, Rocha, Kyle A, Sun, Meng, Srivastava, Philipp M

“…The three dynamically confirmed wind-fed black hole high-mass X-ray binaries (BH-HMXBs) are suggested to all contain a highly spinning black hole (BH)…”
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Sub-relativistic Outflow and Hours-Timescale Large-amplitude X-ray Dips during Super-Eddington Accretion onto a Low-mass Massive Black Hole in the Tidal Disruption Event AT2022lri by Yao, Yuhan, Guolo, Muryel, Tombesi, Francesco, Li, Ruancun, Gezari, Suvi, García, Javier A, Dai, Lixin, Chornock, Ryan, Lu, Wenbin, Kulkarni, S. R, Gendreau, Keith C, Pasham, Dheeraj R, Cenko, S. Bradley, Kara, Erin, Margutti, Raffaella, Ajay, Yukta, Wevers, Thomas, Kwan, Tom M, Andreoni, Igor, Bloom, Joshua S, Drake, Andrew J, Graham, Matthew J, Hammerstein, Erica, Laher, Russ R, LeBaron, Natalie, Mahabal, Ashish A, O'Connor, Brendan, Purdum, Josiah, Ravi, Vikram, Sears, Huei, Sharma, Yashvi, Smith, Roger, Sollerman, Jesper, Somalwar, Jean J, Wold, Avery

“…We present the tidal disruption event (TDE) AT2022lri, hosted in a nearby ($\approx\!144$ Mpc) quiescent galaxy with a low-mass massive black hole…”
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A 13-ENOB, 5 MHz BW, 3.16 mW multi-bit continuous-time ΔΣ ADC in 28 nm CMOS with excess-loop-delay compensation embedded in SAR quantizer by Guowen Wei, Shettigar, Pradeep, Feng Su, Xinyu Yu, Kwan, Tom

“…A 13-ENOB, 5 MHz BW, 3.16 mW 3-bit continuous-time ΔΣ ADC sampling at 432 MHz is presented. For power efficiency, this design utilizes a hybrid feedback…”
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A stereo multibit ΣΔ DAC with asynchronous master-clock interface by Kwan, T., Adams, R., Libert, R.

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An 11.5-ENOB 100-MS/s 8mW dual-reference SAR ADC in 28nm CMOS by Inerfield, Michael, Kamath, Abhishek, Feng Su, Hu, Jason, Yu Xinyu, Fong, Victor, Alnaggar, Omar, Fang Lin, Kwan, Tom

“…Recent publications have demonstrated ADCs with ENOB > 11, sampling frequencies > 50MHz, with power <; 50mW, making the SAR ADC architecture an attractive…”
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A 13-ENOB, 5 MHz BW, 3.16 mW multi-bit continuous-time Delta capital sigma ADC in 28 nm CMOS with excess-loop-delay compensation embedded in SAR quantizer by Wei, Guowen, Shettigar, Pradeep, Su, Feng, Yu, Xinyu, Kwan, Tom

“…A 13-ENOB, 5 MHz BW, 3.16 mW 3-bit continuous-time Delta capital sigma ADC sampling at 432 MHz is presented. For power efficiency, this design utilizes a…”
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An adaptive analog continuous-time CMOS biquadratic filter by Kwan, T., Martin, K.

“…An adaptive analog continuous-time biquadratic filter is realized in a 2- mu m digital CMOS process for operation at 300 kHz. The biquad implements the notch,…”
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Stereo multi-bit capital sigma Delta D/A with asynchronous master-clock interface by Kwan, Tom, Adams, Robert, Libert, Robert

“…An oversampling DAC that generates low-jitter, synchronous and oversampled clock is presented which internally uses an on-chip digital phase-locked loop and a…”
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A 3nV/vHz programmable gain/BW mixed-signal 4th order Chebyshev high-pass filter for ADSL/VDSL analog front end in 28nm CMOS by Mehta, Harsh, Krishnamurthy, Gautham, Inerfield, Michael, Fang Lin, Kwan, Tom

“…A fourth-order Chebyshev high-pass filter (HPF) that achieves input-referred noise of 3 nV/√Hz, MTPR greater than 72 dB, and power consumption of less than 81…”
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A single-chip universal cable set-top box/modem transceiver by D'Luna, L.J., Tan, L.K., Mueller, D., Laskowski, J.L., Cameron, K., Jind-Yeh Lee, Gee, D., Monroe, J.S., Law, H.S., Chang, J., Wakayama, M.H., Kwan, T., Chi-Hung Lin, Buchwald, A., Kaylani, T., Lu, F., Spieker, T., Hawley, R., Smaueli, H.

“…A mixed-signal digital cable-TV transceiver IC containing two distinctly separate quadrature amplitude modulation (QAM) receivers and a single QAM modulator…”
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A stereo asynchronous digital sample-rate converter for digital audio by Adams, R., Kwan, T.

“…The design of an asynchronous digital sample-rate converter for digital-audio applications is presented. The theory of asynchronous sample-rate conversion is…”
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